  In his analysis of consciousness in the Thirty Verses  (Triṃśikā-kārikā, I, 1) Vasubandhu treats apprehending subject and apprehended phenomena are emergent  properties of the threefold transformation of consciousness  (vijñānapariṇama). This transformation  begins when the maturating seeds of consciousness take the form of  perception and thought processes. Following this process of  maturation and in dependence upon the repository consciousness there  evolves a reflexive awareness whose object is none other than this  subliminal or repository consciousness itself. This theory of  cognitive emergence presumably provides a better account of the role  that the residual forces of past cognitions play in  ‘seeding‘ the repository consciousness. It is the  dynamics of these residual forces which ultimately generates the  intentional forms of cognitive awareness that support all other forms of cognitive activity. 