Imam explains the matter in his famous book "an exposition on Forty Hadith" explains the matter as following:
This idea may have its origin in a higher source, inaccessible to you like the Qur’an, hadith, or reason. How strange it will be that a faqih issues a fatwa (a religious or legal opinion) regarding a certain ayah (a pecuniary compensation for any offence against a person) of which you are ignorant, and you reject it without checking the relevant evidences.
Or, when a holy person or a mystic speaks something concerning religious learning, or he refers to the conditions of heaven or hell, it is easy for you to refute him or even dare to insult him. For it does not need much thinking or knowledge.
But do not forget that it is possible that the person, who is an authority on that subject and a master in that field, might have traced it back to the Holy Book, or has access to some traditions transmitted from infallible Imams , and you may not have come across it.
In that case, you would be guilty of rejecting God and His Prophet (S) without any plausible excuse. You have no justification to say later that your judgment was not correct, your knowledge was limited, or that you had heard a certain person speaking otherwise on the minbar (pulpit); such excuses are unfounded, and in any case let not your objective be blurred, Imam Khomeini further explained.
Whatever has been related about the paradise of good morals and deeds and about the inferno of bad morals and deeds refers to the states, which we cannot experience here.
Thus, my friend ! take great care, search for remedy, and try to discover the ways and means of deliverance for yourself. Seek refuge in God, the Most Merciful, and Beneficent, and beseech His mercy with humble supplications and lamentation, so that He may help you in this holy war against your carnal self and you may be victorious and the domain of your heart may be liberated from evil influences.
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