A pure life and a clean conscience are as bread and wine for the soul.

A pure life is the term used to express the effort of man to keep his spiritual being untainted by the false values of the worldly life. It is the constant search for the original self, the desire to reach it, and the means employed to recover it, which alone can truly be called purity of life. ... When this purity is reached man lives in virtue. Virtue is not a thing which he expresses or experiences from time to time; his life itself is virtue. Every moment that God is absent from the consciousness is considered by the sage to be a sin; for at that moment the purity of the heart is poisoned. It is lack of life which is sin: and it is purity of life which is virtue. It is of this purity that Jesus Christ spoke when he said, 'Blessed are the pure in heart for they shall see God.'