This contemplation establishes us in purity and in limpidity above all our understanding, for it is a special enrichment and a heavenly crown, and in addition, an eternal reward for all virtues and for all lives. And no one can arrive at this by means of science or subtlety, nor by any practice, but only he whom God wishes to unite with His Spirit and to illumine with Himself may contemplate God, and nobody else. The hidden divine nature is eternally active, contemplating and loving with respect to each person, and always enjoying the embrace with each person, in unity of essence.

The Spiritual Espousals (c. 1340)