When Yogi comes out of Samadhi and immediately duality confronts him again. His peace goes, it was depended Samadhi-sleep. Hence no yogi attains true peace, but he imagines it.
It is not possible know that a Yogi is self-realized because the yogic Samadhi is not Self-Realization. One must first find out that what he has got is Samadhi or wisdom. Only through non-dual wisdom one gets self realization. The yogic Samadhi cannot be considered as non-dual wisdom. Therefore there is need to verify the facts.
If a god men claims “I am god “No one can disapprove. Similarly with all other yogis who assert they know Brahman in Samadhi. There is no possibility of proof or disproof. Hence these yogis assume or imagine they are god and they cheat themselves or others without knowing what god is in reality.
When one cannot know the world in front of him then how can he know the God? He will only know his imagination of a God. How can he say his God is all-merciful, when the god is formless and cannot be perceivable from physical eyes?
Sanyasins are enjoined not to accept anything or ask for anything in order to get established in Atman. Religion propagates that only Sanyasis can have Brahma Gnana, but it is not so, anyone who trains himself to reason on the base of the true self will be able to acquire non-dual wisdom. Blessings are religious fable. Only pretenders give blessings. A Gnani neither blesses nor curses.
The yogi fail to see non-duality in Samadhi, because he believes there is bliss to come to him from Samadhi. That shows he does not know truth, but still seeks bliss as something apart from himself.
It is no use seeing God everywhere. One must see Atman, the same consciousness, the same self, everywhere, and then only he will be able to accept all the three states alike(as consciousness(, with sameness.