Many passages in the Bible suggest the crucial importance of being filled with/full of the Holy Spirit and being led by the Spirit for an optimal Christian walk. Below a few examples:
And Jesus, full of the Holy Spirit, returned from the Jordan and was led by the Spirit in the wilderness 2 for forty days, being tempted by the devil. And he ate nothing during those days. And when they were ended, he was hungry. [Luke 4:1-2, ESV]
3 Therefore, brothers, pick out from among you seven men of good repute, full of the Spirit and of wisdom, whom we will appoint to this duty. [Acts 6:3, ESV]
18 And do not get drunk with wine, for that is debauchery, but be filled with the Spirit, 19 addressing one another in psalms and hymns and spiritual songs, singing and making melody to the Lord with your heart, 20 giving thanks always and for everything to God the Father in the name of our Lord Jesus Christ, 21 submitting to one another out of reverence for Christ. [Ephesians 5:18-21, ESV]
12 So then, brothers, we are debtors, not to the flesh, to live according to the flesh. 13 For if you live according to the flesh you will die, but if by the Spirit you put to death the deeds of the body, you will live. 14 For all who are led by the Spirit of God are sons of God. 15 For you did not receive the spirit of slavery to fall back into fear, but you have received the Spirit of adoption as sons, by whom we cry, “Abba! Father!” 16 The Spirit himself bears witness with our spirit that we are children of God, 17 and if children, then heirs—heirs of God and fellow heirs with Christ, provided we suffer with him in order that we may also be glorified with him. [Romans 8:12-17, ESV]
29 And now, Lord, look upon their threats and grant to your servants to continue to speak your word with all boldness, 30 while you stretch out your hand to heal, and signs and wonders are performed through the name of your holy servant Jesus.” 31 And when they had prayed, the place in which they were gathered together was shaken, and they were all filled with the Holy Spirit and continued to speak the word of God with boldness. [Acts 4:29-31, ESV]
Moreover, one of the promised functions of the Holy Spirit is that He would lead the Christian to all the truth:
12 “I still have many things to say to you, but you cannot bear them now. 13 When the Spirit of truth comes, he will guide you into all the truth, for he will not speak on his own authority, but whatever he hears he will speak, and he will declare to you the things that are to come. 14 He will glorify me, for he will take what is mine and declare it to you. 15 All that the Father has is mine; therefore I said that he will take what is mine and declare it to you. [John 16:12-15, ESV]
Question: according to Latter-day Saints, if a person accepts Jesus Christ as their Lord and Savior, and then experiences the fullness of the Holy Spirit and begins to be led by the Holy Spirit, will the Holy Spirit unequivocally lead such a person to the truth of Mormonism? In other words, is it possible to be a Christian full of the Holy Spirit and simultaneously not be led by the Spirit to accept the Book of Mormon as divine revelation?