FIFTH MANSIONS. This is the state described elsewhere as the Third Water, the Spiritual Betrothal, and the Prayer of Union -- that is, incipient Union. It marks a new degree of infused contemplation and a very high one. By means of the most celebrated of all her metaphors, that of the silkworm, St. Teresa explains how far the soul can prepare itself to receive what is essentially a gift from God. She also describes the psychological conditions of this state, in which, for the first time, the faculties of the soul are "asleep". It is of short duration, but, while it lasts, the soul is completely possessed by God.