Katha Upanishad says ~ Fools go round and round, by various tortuous paths, like the blind led by the blind.+

If you want to know what is this world in which you exist in actuality then you must know its illusory nature.

If you change your ‘I know' attitude’ and indulge in deeper self-search you will be able to discover the truth, which is hidden by the world in which you exist. 

Katha Upanishad says ~ Fools dwelling in darkness, but thinking themselves wise and erudite, go round and round, by various tortuous paths, like the blind led by the blind. (Ch~ II-5 P-14)

Those who indulge in a perverted argument from their own standpoint and opinion are not seeking the truth, which is beyond form, time, and space. They just want to exhibit their accumulated knowledge accumulated from here and there. They think what they know is the ultimate truth.

They think whatever they propagate is the ultimate truth. The question never occurs to them, “Is what I know is really the truth.

You have stuck up some Gurus and their teaching you are like stagnant water of the dirty pond. Until you are stuck up with the idea that you get instant enlightenment from some enlightenment then you are hallucinating.

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.”

Sage Sankara says ~ VC-162- There is no liberation for a person of mere book knowledge, howsoever well-read in the philosophy of Vedanta, so long as one does not give up the false identification with the body, sense organs, etc., which are unreal.

People dwelling in ignorance, but thinking themselves wise and erudite, go round and round by various blind beliefs and tortuous paths and practices, like the blind led by the blind.

Come out of your prison of emotion. Be independent. Sit think, reason, and reflect deeply.

You need to read or hear the words of wisdom of Advaita. Remember, the Soul is the only reality and the world in which you exist is an illusion.

Reason and reflect upon the words of wisdom of Advaita constantly. Give up all further argumentation and realize the truth. 

This realization comes from being certain that the Soul, which is present in the form of consciousness alone, is real and the world in which you exist is an illusion created out of consciousness. Thus, the Soul is the ultimate truth or Brahman or God in truth.

That is why Sage Sankara's declaration: ~ “Brahman is the truth The world is unreal everything is truly Brahman and nothing else has any value.

Sage Sankara said:~Talk as much philosophy as you like, worship as many Gods as you please, observe ceremonies, and sing devotional hymns, but liberation will never come, even after a hundred aeons, without realizing the Oneness. : ~ Santthosh Kumaar