Manduka Upanishads: - A Gnani no external mark. Neither nudity nor the yellow robe has anything to do with him.+

The Knower of the ultimate truth or Brahman or God is Brahma Gnani. A Brahma Gnani has realized the knowledge hidden by the illusory form, time, and space.

A Gnani will never force anyone to accept the path of wisdom. He will constantly bring the seeker back to the fact of his inherent perfection and encourage him to seek the truth, which is beyond form, time, and space. 

A Gnani knows you need nothing, not even him, and is never tired of reminding you. A Gnani continuously shares Self-knowledge or Brahma Gnana or Atma Gnana with like-minded fellow seekers.

Self-declared Gurus are more concerned with themselves than with their disciples and play with their sentiments and emotions. 

By sticking to such Gurus, the seeker will not get Self –realization. Gurus and yogis are meant for those who are emotionally involved with their religion and religious Gods.

A Gnani never claims himself as a Gnani, he guides the seekers, not posing himself as a Guru, and he does not force his wisdom on others.

Sage Sankara: ~ "Though I wear these robes of a Sanyasin, it is only for the sake of bread."

Sage Sankara:~ VC(2):~Knower of the Atman (i.e., a Gnani) "bears no outward mark of a holy man" (Stanza 539).

Sage Sankara writes: ~ “Sometimes he (A Gnani) appears to be a Fool, sometimes a wise man. Sometimes he seems splendid as a king, sometimes feeble-minded. Sometimes he is calm and silent. Sometimes he draws men to him. Sometimes people honor him greatly, sometimes they insult him. Sometimes they ignore him.

Manduka Upanishads: -  It is very difficult to find out who is a Gnani because he bears no external mark. Neither nudity nor the yellow robe has anything to do with him.

Jesus said: ~ Do not throw your pearls before pigs, lest they trample them underfoot and turn to attack you. (Matthew -7:6)

~ Jesus meant Self-knowledge or Brahma Gnana (pearls) should not be given to the ignorant populace (pigs).

A Gnani cannot have the idea of renouncing the world or giving up something of the practical world because that would connote the idea of duality. Duality is merely an illusion from the ultimate standpoint. Knowing no second thing at all, there remains nothing to be given up.

Self- Knowledge is only is true knowledge not the absence of duality. Self -Knowledge cannot destroy the world but it eliminates ignorance and exposes the unreal nature of the mind or universe. 

Remember 

A Gnani knows both egocentric reason (logic) and Soulcentric reason. He uses the egocentric reason (logic) in practical life within the practical world and uses the Soulcentric reason to know the truth beyond for, time and space.  Logic is very much necessary for practical purposes. But the logic cannot be applied to discover the truth because logic implies duality and the ultimate truth is based on the  Nondualistic perspective.  

To say rise above logic is generally confused by saying "Rise above Reason." It is wrong to give up reason. Life does not consist only of waking state. We must take all three states into account.

If one sticks to the old formal logic, he cannot get at the truth. People seeing this insufficiency of logic, therefore wrongly say "Give up logic and go to intuition." Their error is “What is it that told them that logic was not enough?” It was Reason itself; not intuition. Thus, there is confusion between logic and reason.

The reasoning is interpretable in two ways. The defective interpretation is to apply it only to the waking state. The correct interpretation is to apply it to the three states. The latter leads to a final settlement of the problems because it takes all data into consideration.

Logic, in short, is concerned with correct or valid thinking. Its main concern being non-contradiction, it can lay down the criterion of Truth as non-contradiction, but only with the assumed premises and not with facts. But when facts enter into consideration we have Reason but the same criterion of truth remains, only the propositions with which we start must square with facts of experience, with observed data. Hence, the reason includes logic or correct thinking as well as strict fidelity to experience or facts. Bad logic or insufficiency of facts or wrong data may lead to untruth. 

The scientist with a plethora of data may reason illogically and reach false conclusions. Reason avoids both those mistakes. While reason searches for truth, logic insists on valid or correct thinking only.

Intellect is the power or faculty of thinking logically. The reason is the power or faculty of thinking truly or towards truth. By reason, we go a step beyond anubhava or experience by making explicit in it. The reason, I would, therefore, define as that which makes explicit what is implicit in an experience. This will I believe cover the reason of science as well as of Vedanta between which you have in some article of yours, made a distinction. When I read that definition of yours, I felt you have descended into mysticism. : ~ Santthosh Kumaar