No mantras help to get rid of ignorance.+

To know what God is, we must know what the 'Self' is. In deeper Self-search, we become aware of the fact that our body, ego, and our experience of the universe are created out of single stuff, which is the soul or the consciousness.

Due to ignorance,  we identify the soul with the body and we become egocentric.  When we become aware of the fact that, the Self is not the form,  but the Self is formless,  then we become soul-centric and realize the fact that all the three states are merely an illusion created out of consciousness.  

Thus, consciousness is the ultimate truth. The consciousness is our innermost Self.  The ultimate truth is God or Brahman or God in truth. 

                                                                             
Thus, the seekers move ahead and reach the nondual destination through this mental (inner) journey.

No mantras help to get rid of ignorance. All the mantras and rituals are meant for the ignorant populace, which strongly believes, that the world in which he exists as a reality.  For one who wants to acquire Self-knowledge or Brahma Gnana or Atma Gnana, the mantas will not help to realize the truth, which is beyond form, time, and space.

That is why Sage Sankara:~ VC~.61. For one who has been bitten by the serpent of Ignorance, the only remedy is the knowledge of Brahman. Of what avail are the Vedas and (other) Scriptures, Mantras (sacred formulae), and medicines to such a one?

VC-  v6~ Let erudite scholars quote all the scripture, let Gods be invoked through sacrifices, let elaborate rituals be performed, let personal gods be propitiated---yet, without the realization of one‘s identity with the Self, there shall be no liberation for the individual, not  even in the lifetimes of a hundred Brahmas put together

Sage Sankara goes on to say: ~A sickness of not cured by saying the word “medicine.” You must take the medicine. Liberation does not come by merely saying the word “Brahman.” Brahman must be experienced. Until you allow this apparent universe to dissolve from your consciousness until you have realized Brahman, how can you find liberation just by saying the word Brahman? The result is merely noise. Until a man has destroyed his enemies and taken possession of the splendor and wealth of the kingdom, he cannot become a king by simply saying “I am a king.”

A buried treasure is not uncovered by merely uttering the words: “Come forth.” You must follow the right directions, dig, remove the stones and earth from above it, and then make it your own. In the same way, the pure truth of the Atman, which is buried under Maya and the effects of Maya, can be reached by meditation, contemplation, and other spiritual disciplines but never by subtle arguments. : ~ Santthosh Kumaar