Jagrathavastha Prajnavastha turiyavastha and Swapnavastha

The four states of consciousness 

Jagrathavastha, the wakeful state is the state of normal consciousness and is concerned with the gross world of matter or the state of normal consciousness concerned with the material world. It brings empirical knowledge of the phenomenal world acquired through sensations and perceptions. 

It has several means of knowing. These consist of the jnanendriyas (the five organs of perception), the five pranas (vital energies), the karmendriyas (the five organs of action), manas (mind), Chitta (consciousness),  buddhi (intellect), and ahankara (ego). 

In the jagrathavastha these nineteen aspects of sensational or empirical knowledge are integrated. It is essentially this knowledge that hankers after the pleasures of the material world. 

Swapnavastha, subconscious faculty concerned with the subtler aspects of human knowledge and experience or the dream state of consciousness has the subconscious faculty of recognizing and getting an inkling of the holy experience of divinity and sanctity. It is concerned with the subtler aspects of human knowledge and experience. It carries with it subtler impressions of the experiences of the jagrathavastha.

 Prajna and turiyavastha assume different characteristics.  Prajnavastha, state of super consciousness when the dichotomy between grossness and subtlety disappears or Prajnavastha is a transcendental state of consciousness in which the dichotomy between grossness and subtlety disappears in superconsciousness. It is pure prajna or consciousness of Divinity. 

      In prajnavastha, the differentiating and diversifying faculties of the mind become inoperative. That is why it is said that prajnana is Brahman. To help man reach this summit of Divinity, Krishna has expounded in the Bhagavad Gita the sadhana of dhyana, the path of meditation. In prajnavastha, all mundane desires and dream-wishes are sublimated into the bliss of spiritual experience. The lambent light of prajnana shines steadily in this state of higher consciousness.

The turiyavastha is the highest state of consciousness in which the essential nature of the Atma is experienced or steady state of consciousness when essential nature of atman is experienced. sivam (goodness), Santam (tranquillity) and sdwaitham (nonduality) are experienced by the sadhaka. The turiyavastha is a pure, tranquil, and steady-state of superconsciousness in which all discriminating and differentiating Gunas (attributes) are transcended and dissolved in the eternal and absolute reality of Brahman.