Question: Why does man have an instinctive aversion to the idea of the annihilation of the soul?
Answer: Because there is no such thing as nothingness.
Question: Where does our instinctive sentiment of a future life come from?
Answer: We have already told you: before incarnating, the spirit is aware of all these things, and, once incarnate, the soul retains a vague memory of that knowledge and of what was seen during the interval in between incarnations.
Question: At the moment of death, what is the prevailing feeling in most people: doubt, fear, or hope?
Answer: Doubt in the case of hardhearted skeptics; fear, in the case of the guilty; and hope, in the case of the virtuous.
Question: Why are there skeptics at all, as the soul gives man the intuition of spiritual matters?
Answer: There are fewer skeptics than you suppose. During life, many pretend to be bold freethinkers out of pride, but at the moment of death, they are much less arrogant.
The consequences of the future life derive from the responsibility for our acts. With regard to the distribution of the joys to which all aspire, reason and justice tell us that the good and the wicked cannot possibly be ranked together. God cannot have wished for some to be awarded enjoyments without effort, whereas others only through struggle and perseverance.
The idea that God applies His justice and mercy through the wisdom of His laws does not allow us to believe that the righteous and the wicked are at the same level in His eyes. Nor can we doubt that some day the former shall receive a reward, and the latter a punishment, for the good or evil they have done. That is why our innate sense of justice gives us the intuition of future rewards and punishments.
Question: Is God personally concerned with each individual? Isn’t God too great and aren’t we too small for each individual in particular to have any importance in His eyes?
Answer: God is concerned with all the beings He created, no matter how small they may be. Nothing is too small for the goodness of God.
The Spirits’ Book by Allen Kardec, Chapter 2, part 1: 958, 959; part 2: 961, 962, part 3: 963