From Rigpa Wiki
- In Tantra the principle of deities is a way of communicating. It is difficult to relate to the presence of enlightened energies if they have no form or ground for personal communication. The deities are understood as metaphors, which personalize and capture the infinite energies and qualities of the wisdom mind of the buddhas. Personifying them in the form of deities enables the practitioner to recognize them and relate to them. Through training in creating and reabsorbing the deities in the practice of visualization, he or she realizes that the mind that perceives the deity and the deity itself are not separate.
- Sogyal Rinpoche, The Tibetan Book of Living and Dying, page 289.