Hence it comes that, if there are as many risks on one side as on the other, the course is to play even; and then the certainty of the stake is equal to the uncertainty of the gain, so far is it from the fact that there is an infinite distance between them. And so our proposition is of infinite force, when there is the finite to stake in a game where there are equal risks of gain and of loss, and the infinite to gain. This is demonstrable; and if men are capable of any truths, this is one. "I confess it, I admit it. But still is there no means of seeing the faces of the cards?"—Yes, Scripture and the rest, &c.—"Yes, but I have my hands tied and my mouth closed; I am forced to wager, and am not free. I am not released, and am so made that I cannot believe. What then would you have me do?"
[The Heart Has Its Reasons]
True. But at least learn your inability to believe, since reason brings you to this, and you cannot believe. Endeavor then to convince yourself, not by increase of proofs of God, but by the abatement of your passions. You would like to attain faith, and do not know the way; you would like to cure yourself of unbelief, and ask the remedy for it. Learn of those who have been bound like you, and who now stake all their possessions. These are people who know the way which you would follow, and who are cured of an ill of which you would be cured. Follow the way by which they began; by acting as if they believe, taking the holy water, having masses said, &c. Even this will naturally make you believe, and deaden your acuteness.—"But this is what I am afraid of"—And why? What have you to lose?
But to show you that this leads you there, it is this which will lessen the passions, which are your stumbling—blocks.
The heart has its reasons which reason does not know. We feel it in a thousand things. I say that the heart naturally loves the Universal Being, and also itself naturally, according as it gives itself to them; and it hardens itself against one or the other at its will. You have rejected the one, and kept the other. Is it by reason that you love yourself?
It is the heart which experiences God, and not the reason. This, then, is faith; God felt by the heart, not by reason.
Source: https://philosophy.lander.edu/intro/introbook2.1/x4404.html
It seems to me that Blaise Pascal is suggesting that one can "fake it till you make it"—that by acting as if one believes that God exists, genuine belief will eventually follow, thus "curing" unbelief. And this cure will actually take the form of one somehow experiencing God in one's heart (whatever Pascal exactly meant by that), as opposed to a logical/rational conclusion being grasped by reason. Hence the well-known "The heart has its reasons which reason does not know".
Is my understanding of Pascal more or less correct? If so, what is the Biblical basis for his approach?
NOTE. I asked a similar question on Philosophy Stack Exchange: Is Blaise Pascal's approach to "curing unbelief" in the proposition that God exists philosophically sound?