The energy of G-d within the soul of man, would be completely subsumed by the Eternal light, if not for it's garments.

The laws of the Oral Torah, are called the "Crown". As a woman is called the "crown" to her husband, so is the Oral Law to the Written Law.

A Tzaddik's life is replete with love and fear of G-d. The soul of the Tzaddik continues to nourish those of his disciples after his life even more than during his lifetime.