Now it is clear that when the self becomes conscious of itself as object we see that there are three phases in it: (i) that in which the self becomes an object to itself; (ii) when it directs itself or turns as the subject upon itself as the object, this moment of activity which can effect an aspect of change in itself; (iii) the aspect of the consciousness of the self, the moment in which it perceives itself in its object, the moment of the union of itself as the subject and itself as the object in one luminosity of self-consciousness. Now that phase of self in which it is merely an object to itself is the phase of its union with prakṛti which further develops the prakṛti in moments of materiality by a preponderance of the inert tamas of the bhūtādi into tanmātras and these again into the five grosser elements which are then called the _grāhya_ or perceptible. The sattva side of this ego or self-consciousness which was hitherto undifferentiated becomes further differentiated, specialised and modified into the five cognitive senses with their respective functions of hearing, touch, sight, taste and smell, synchronising with the evolution of the prakṛti on the tanmātric side of evolution. These again individually suffer infinite modifications themselves and thus cause an infinite variety of sensations in their respective spheres in our conscious life. The rajas side of the ego becomes specialised as the active faculties of the five different conative organs. There is another specialisation of the ego as the manas which is its direct instrument for connecting itself with the five cognitive and conative senses. What is perceived as mere sensations by the senses is connected and generalised and formed into concepts by the manas; it is therefore spoken of as partaking of both the conative and the cognitive aspects in the _Sāṃkhya-kārikā_, 27.