Without wisdom the ignorance will not vanish.

The truth is hidden within the duality but it is without the duality. Until one considers self is an individual he will remain in the realm of intellectuality. Intellectuality belongs to individuality and individuality is falsehood from ultimate standpoint. Thus it is no use arguing with such mind set who are not ready and receptive to grasp and realize non-dual truth because they are stuck with their accepted truth as ultimate truth, without verifying the facts and they remain like stagnant water in muddy pond. The guidance comes from any form when the seeker is ready and receptive to take the mental (inner) journey. 

The people who are stuck with ‘I’ or ‘I AM’ as self are eaten only the half cooked food are satisfied with half-knowledge and they will not be able to grasp digest the fullness or oneness of the self or Brahman because their conviction about it is deep rooted . Thus they remain in ignorance thinking they know everything without fully knowing what is what.

Some think using the language without the words they will attain the state of oneness by telling others not use words with words. The oneness does not arise by observing silence or without using language without words or trying to be in the thoughtlessness. The deep sleep is the state of thoughtlessness, silence, wordlessness, silence but it is not considered as state of oneness because any one can take a sleeping pill and will be able to get the state of one- ness. Thus trying to imitate the state of oneness in duality by observing silence, thoughtlessness, wordlessness or by yogic- Samadhi or surrendering to the physical guru the wisdom will not dawn.

Without wisdom the ignorance will not vanish. Thus getting rid of the ignorance through wisdom is the only way to realize the ultimate truth or Brahman.