The essence of any religion lies solely in the answer to the question: why do I exist, and what is my relationship to the infinite universe that surrounds me? It is impossible for there to be a person with no religion (i.e. without any kind of relationship to the world) as it is for there to be a person without a heart. He may not know that he has a religion, just as a person may not know that he has a heart, but it is no more possible for a person to exist without a religion than without a heart.
Leo TolstoyWhen Levin thought what he was and what he was living for, he could find no answer to the questions and was reduced to despair; but when he left off questioning himself about it, it seemed as though he knew both what he was and what he was living for, acting and living resolutely and without hesitation.
Leo TolstoyMan recognizes that he will not die, only when he recognizes that he was never born, but always has been, is, and will be.
Leo TolstoyAt that instant he knew that all his doubts, even the impossibility of believing with his reason, of which he was aware in himself, did not in the least hinder his turning to God. All of that now floated out of his soul like dust. To whom was he to turn if not to Him in whose hands he felt himself, his soul, and his love?
Leo TolstoyWhen a man sees a dying animal, horror comes over him: that which he himself is, his essence, is obviously being annihilated before his eyes--is ceasing to be. But when the dying one is a person, and a beloved person, then, besides a sense of horror at the annihilation of life, there is a feeling of severance and a spiritual wound which, like a physical wound, sometimes kills and sometimes heals, but always hurts and fears any external, irritating touch.
Leo Tolstoy