Thuriyaatheetha Avadhoootha Upanishad

1.  Thuriya means  a state beyond jaagrath, swapna, sushupti and thureeyam.

2.  These are the four states for anyone including a great Rishi or yogi. But few yogis cross even this fourth level, so it is known as thureeya + atheetha = thiriyaatheetha, state of a Rishi/ yogi.

3. This description is given like a discussion between Lord Sreeman Narayana  and  Lord Brahma.  

4.  Anyone can reach this level through  the state of a Rishi, then to Maharshi, then to Hamsa Rishi, from there to Paramahamsa rishi  through knowing the Veda purusha+ mahapurusha and parama purusha ( prapancha purusha). 

5. The thuriyaatheetha yogies / Rushies need not even wear clothes, they don’t have any mantras or rituals  and  they can give up anything and even everything.

6. That yogi will not be affected by punya / papa; jnaana or ajnaana; cold or heat;

7. He can control all the five sensory organs and  five functional organs within seconds  and  keep himself away from the environmental influences.

8. Everything he does alone and resides in the corner of the world alone.

9.  He will be detached from everything.