A Gnani is a rational thinker. A Gnani will not be so foolish as to argue with an irrational man.+

Even friends and family members of a Gnani will not know him as the Gnani. Due to ignorance, people will not be able to recognize a Gnani. 

Outwardly the Gnani behaves as an ordinary person behaves. A Gnani talks and jokes like others, but he is not understood as he really is. People may regard him as an exceptional person, but only a few can recognize him as a Gnani.

A Gnani is the one who has realized the matter itself is Spirit and the matter is an illusory expression of the Spirit. A Gnani there is no further quest. To a Gnani, there is nothing to realize because he has realized everything is the Spirit.

To a Gnani, the world in, which he exists is non-existent as a reality because the world in which he exists is nothing but the Spirit. A Gnani is free from experiencing the dualistic illusion as a reality because he is fully aware of the Spirit, which is the cause of the dualistic illusion and the Spirit is uncaused.

Remember:~

Religious Gurus are not Gnanis, they propagate only religion. Religion is not spirituality. Religious Gurus do not propagate wisdom they are meant to guide the ignorant populace in practical life within the practical world. Many Religious gurus are serving humanity by giving free education and maintaining love and harmony in society but they are nothing to do with the Atmic path.

The Guru has nothing to do with Advaitic wisdom. A Gnani never identifies himself as a guru.

There are so many in the guise of Gurus and Godmen with criminal records who indulge in cheating rape, and murder.

The Gurus and Godmen who promise instant enlightenment or Self-realization are not Gnanis. Mixing religion with the Atmic path is like mixing oil in the water.

Seekers from the West mistake whoever calls them as gurus Gnanis, thus their mission of seeking the truth is misguided by such Gurus.

Sage Sankara: ~ "Though I wear these robes of a Sanyasin, it is only for the sake of bread." (Select Works of Sage Sankara" also his commentary on Brihad)

Thus, the above passage proves that all those who wear the sanyasin robes are wearing them for the sake of bread belong to the religion; they have nothing to do with Self-knowledge or Brahma Gnana or Atma Gnana. 

There is no need to criticize and condemn the Gurus, yogis, and swamis because they are needed for the welfare of the ignorant masses in the dualistic world.

Sage Sankara says the transparent Truth of the Self, which is hidden by the illusion, is to be attained through the instructions of a knower of Brahman, (Gnani)

~ Then why you are sticking a Guru who is not a Gnani.

That is why Swami Vivekananda said: ~ “You have to grow from the inside out. None can teach you, none can make you spiritual. There is no other teacher, but your own Soul.”

Yogis and Gurus are not Gods.

This idea of worshiping Guru as God is not a Vedic idea but adopted from Jainism and Buddhism.

Vedas bar human worship: ~

"They are enveloped in darkness, in other words, are steeped in ignorance and sunk in the greatest depths of misery who worship the uncreated, eternal prakrti -- the material cause of the world -- in place of the All-pervading God, But those who worship visible things born of the prakrti, such as the earth, trees, bodies (human and the like) in place of God are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow, and suffer terribly for a long time.":~ (Yajur Veda 40:9.)

Then why worship and glorify the Gurus and Yogis (human form) in place of God when Veda bars such activities and it also warns people who indulge in such activities are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow, and suffer terribly for a long time.

Sage Sankara says the transparent Truth of the Self, which is hidden by the illusion, is to be attained through the instructions of a knower of Brahman, (Gnani).

~ Then why you are sticking a Guru who is not a Gnani.

A Gnani will easily appreciate the high flights of Sage  Sankara’s Advaitic wisdom is one of the 'most majestic structures and valuable products of the Genius of man in his search for Truth. : ~Santthosh Kumaar