If Sakha-Yoga philosophy does not explain the reason and origin of the strange partnership between the spirit and experience, at least tries to explain the nature of their association, to define the character of their mutual relations. These are not real relationships, in the true sense of the word, such as exist for example between external objects and perceptions. The true relations imply, in effect, change and plurality, however, here we have some rules essentially opposed to the nature of spirit.“States of consciousness” are only products of Prakrit and can have no kind of relation with Spirit the latter, by its very essence, being above all experience. However and for Simply and Yoga this is the key to the paradoxical situation the most subtle, most transparent part of mental life, that is, intelligence (Buddha) in its mode of pure luminosity (sativa), has a specific quality that of reflecting Spirit. Comprehension of the external world is possible only by virtue of this reflection of Purus in intelligence. But the Self is not corrupted by this reflection and does not lose its ontological modalities (impassibility, eternity, etc.). The Yoga-surreys (II, 20) say in substance: seeing (drastic; i.e., Purus) is absolute consciousness (“sight par excellence”) and, while remaining pure, it knows cognitions (it “looks at the ideas that are presented to it”). Nyasa interprets: Spirit is reflected in intelligence (Buddha), but is neither like it nor different from it. It is not like intelligence because intelligence is modified by knowledge of objects, which knowledge is ever-changing whereas Purus commands uninterrupted knowledge, in some sort it is knowledge. On the other hand, Purus is not completely different from Buddha, for, although it is pure, it knows knowledge. Patanjali employs a different image to define the relationship between Spirit and intelligence: just as a flower is reflected in a crystal, intelligence reflects Purus. But only ignorance can attribute to the crystal the qualities of the flower (form, dimensions, colors). When the object (the flower) moves, its image moves in the crystal, though the latter remains motionless. It is an illusion to believe that Spirit is dynamic because mental experience is so. In reality, there is here only an illusory relation (padi) owing to a “sympathetic correspondence” (Toyota) between the Self and intelligence.

Yoga: Immortality and Freedom