...The spiritual Oriental teachers say a person has three forms of mind,'' Beatrice was explaining to him once, while they were on break between one lesson and another at university, ''which are the dense mind, the subtle level and the ultra-subtle mind. Primary Consciousness, or the dense mind, is that existential, Sartrean mind which is related to our senses and so it is guided directly by human primitive instincts; in Sanskrit, this is referred to as ālaya-vijñāna which is directly tied to the brain. The subtle mind comes into effect when we begin to be aware of our true nature or that which in Sanskrit is called Ātman or self-existent essence that eventually leads us to the spiritual dimension. Ultimately there is the Consciousness-Only or the Vijñapti-Mātra, an ultra-subtle mind which goes beyond what the other two levels of mind can fabricate, precisely because this particular mind is not a by-product of the human brain but a part of the Cosmic Consciousness of the Absolute, known in Sanskrit as Tathāgatagarbha, and it is at this profound level of Consciousness that we are able to achieve access to the Divine Wisdom and become one with it in an Enlightened State.''