I warn you this is an advanced answer, so I suggest taking your time in your development before discounting this answer. Unfortunately I cannot directly answer this without some foundational concepts to build from, which will be difficult to receive as it is written:
And so I have made it my aim to preach the gospel, not where Christ was named, lest I should build on another man’s foundation, but as it is written: “To whom He was not announced, they shall see; And those who have not heard shall understand.” (Romans 15:20-21 NKJV)
So in effort not to pierce your understanding I must go slow as to not destroy what you have already obtained. Then to begin:
The understanding of what the spirit is has been lost over the times, for once believed as a ghost and separate in being to that of ourselves. Therefore a home was given to the ghost as a temple. Yet even in those days it stood as symbolism, for the very fabric of the universe is the testimony of the power of the word, which in turn is of vibrations of consistency, that and also of sight and of sound. For all matter in structure is held together by its vibrations and how those vibrations release and attract other vibrations. Also that of what we hear is of vibrations, and what we see is of vibrations of light, therefore stated again, all that is around us is of the power of the Word of God.
Therefore there is the natural desire to worship that which is created for the word itself is that OF God.
In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things were made through Him, and without Him nothing was made that was made. (John 1:1-3 NKJV)
Therefore why is God Jealous and Angry at our ancestors for worship that fabric that is OF himself and also that which he sees of as good?
Then God saw everything that He had made, and indeed it was very good. So the evening and the morning were the sixth day. (Genesis 1:31 NKJV)
Because by nature when we say that one part is better then another part. The value of the other part becomes of less. God is not a God of good parts and bad parts. He is a God that is ALL good. Therefore through all praising of the parts, in opposition and in calculation is the devaluation of the other parts. Strictly because of this when at peace with the world the law was this:
But of the tree of the knowledge of good and evil you shall not eat, for in the day that you eat of it you shall surely die. (Genesis 2:17 NKJV)
Because what does this mean? If something is good, then something must be evil! This is the root of Idolatry. Then to truly understand the Holy Spirit we look to see how the teachings in conjunction with the Holy Spirit repairs this error. But first to prove that repairing this error is the resulting expectation.
And whoever lives and believes in Me shall never die. Do you believe this? (John 11:26 NKJV)
Behold! I tell you a mystery. We shall not all sleep, but we shall all be changed, in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised imperishable, and we shall be changed. For this perishable body must put on the imperishable, and this mortal body must put on immortality. When the perishable puts on the imperishable, and the mortal puts on immortality, then shall come to pass the saying that is written: “Death is swallowed up in victory.” “O death, where is your victory? O death, where is your sting?” The sting of death is sin, and the power of sin is the law. But thanks be to God, who gives us the victory through our Lord Jesus Christ. Therefore, my beloved brothers, be steadfast, immovable, always abounding in the work of the Lord, knowing that in the Lord your labor is not in vain. (1 Corinthians 15:51-58 NKJV)
Logically, since though the knowledge of Good and Evil idolatry occurs, giving cause to the death, the removal of that idolatry would then cause life. Therefore to prove this logic as the logic used by Jesus in his teachings, all we need to do is prove that the teachings reflect this logic so we use two witnesses.
Do not love the world or anything in the world. If anyone loves the world, love for the Father is not in them. For everything in the world—the lust of the flesh, the lust of the eyes, and the pride of life—comes not from the Father but from the world. The world and its desires pass away, but whoever does the will of God lives forever. (1 John 2:15-17 NKJV)
For to be carnally minded is death, but to be spiritually minded is life and peace. (Romans 8:6 NKJV)
For by these two accounts we can conclude that to be carnally minded is to love the world and anything in it. Again bring us back to the original problem of idolatry.
So from this perspective we can see how the flesh gives cause to idolatry. As also it has been explained:
Therefore put to death your members which are on the earth: fornication, uncleanness, passion, evil desire, and covetousness, which is idolatry. (Colossians 3:5 NKJV)
So one way to describe the Holy Spirit would be to say that it is the Absence of Idolatry. We can also describe the Holy Spirit as the removal of the desire for what is good, and the forgiveness of that which is evil. For in this specific vantage point of the world, perceiving it this way. The result of the knowledge of good and evil no longer has power over you. For we can KNOW that it is Good and that it is Evil, yet its power we no longer become slaves to THAT understanding. This is explained by the Jesus like this:
Enter by the narrow gate; for wide is the gate and broad is the way that leads to destruction, and there are many who go in by it. (Matthew 7:13 NKJV)
That narrow gate is that fragile balance between our understanding of Good and Evil, where the power of that Knowledge no longer has power over us. How do we receive this power? We receive it by faith is the short answer, but this is a profound mystery that really needs some defining.
The result of the attempt by ourselves
Let us look to the Laws that we were given, as the first move to recover the world, from this knowledge of good and evil. To return to the state that Adam was originally in, the state of Completely Trusting God. We where given the opportunity to make the attempt to recover by our own efforts. This of course failed, and because God wanted to make sure that we would really get the point that by ourselves it would be impossible to make the recovery possible. He allowed us to fail over and over again, each time as a loving Father showing us the fault in our attempt and urging us to continue on so that in the end of this display. It would be Absolutely Obvious and with No Shadow of Doubt that the Value that we obtain by using the knowledge of Good and Evil was not a value that created a profit. And not only that its value was a thing to be devalued, and that it's importance was to be obsolete, and that again it should be a thing not to be touched. So that in the restoration of all things, when again faced with the temptation to eat of the fruit of the Knowledge of Good and Evil. We could be free from that temptation for the rest of eternity.
The result of God doing the work
How then does "trust" return us to the state of an absence of knowledge of Good and Evil? We know that the law is perfect, and in our giving the result of the law back to the Father to act upon justly, the law becomes completed perfectly.
Yet in regards to the self, to hold our-self higher then outside our-self, is in itself it's own usage of the Knowledge of Good and Evil the act of idolatry. Which as described directs us toward death. Therefore trusting God to take care of us can set us free, and not only that. It is trusting that God will Fulfill the Law For Us. For the fulfillment of the law must happen. Therefore the result is the refusing to complete the law by our own accord. This is why it was taught:
To him who strikes you on the one cheek, offer the other also. And from him who takes away your cloak, do not withhold your tunic either. (Luke 6:29 NKJV)
He who leads into captivity shall go into captivity; he who kills with the sword must be killed with the sword. Here is the patience and the faith of the saints. (Revelation 13:10 NKJV)
Why then is it important to receive the Spirit?
Without the spirit one stand in Idolatry.
How can we tell that we have the Spirit?
The acts of the flesh are obvious: sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God. (Galatians 5:19-21)
We can see from this list the Idolatry of Selfishness, the Desire for fleshly "Considered Good" parts of God like "Alcohol", witchcraft("Drug Usage"), sexual fulfillment. And also we can see the result of this Idolatry: hatred, discord, jealousy, fits of rage, selfish ambition, dissensions. These occur because we judge that "the self" does not receive "the good" that it deserves.
Therefore Two changes need to occur. The circumcision of our fleshly desires by considering others greater and our-self less worthy. And the trusting in God to fulfill the Law by giving us the correct amount due, even if in the present moment the correct amount does not seem given.
This faith can be measured through the scale of the Stages of Grief. The lack of Faith (Denial) leads to anger and depression, and though forgiveness offered by the death of Jesus, acceptance returns us to the correct state of trust. The sign that is given to show the weakness of your faith is with the sound of the sigh.
Likewise the Spirit also helps in our weaknesses. For we do not know what we should pray for as we ought, but the Spirit Himself makes intercession for us with groaning which cannot be uttered. (Romans 8:26 NKJV)
The Flesh Man and the Spiritual Man
Now when we look close to the comparison here we are seeing a series of comparisons between the Flesh Man and the Spiritual Man
However, the spiritual is not first, but the natural, and afterward the spiritual. The first man was of the earth, made of dust; the second Man is the Lord from heaven. As was the man of dust, so also are those who are made of dust; and as is the heavenly Man, so also are those who are heavenly. And as we have borne the image of the man of dust, we shall also bear the image of the heavenly Man. (1 Corinthians 15:46-49)
Continuing on with this type of comparisons he shows first the Flesh Man
I tell you this, brothers: flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable. (1 Corinthians 15:50)
Following through later closing his comparison with the Spiritual Man
So when this corruptible has put on incorruption, and this mortal has put on immortality, then shall be brought to pass the saying that is written: “Death is swallowed up in victory.” (1 Corinthians 15:54)
Sometimes in making an explanation we steer to complete a minor point before coming to the fullness of the understanding of the meaning of a presentation, and what has happened in this case of 1 Corinthians 15.
After immortality is put on
We see in the Luke account of Luke 24:39 that Jesus had flesh. And we can know that his presentation of himself was to add belief to his followers for as a reminder this event still occurred.
And He was transfigured before them. His face shone like the sun, and His clothes became as white as the light. (Matthew 17:2 NKJV)
So then the final nature of our flesh after the immortality is put on is of a mystery to me. But the purpose of showing his hands and feet was to make the disciples aware of who he was. God can look as he likes, and can make us look as he wants us to that is for sure. I hope this helps. Sorry it is so long.