Perfect understanding removes all sorts of an obstacle in the pursuit of truth.+

Unless one realizes the Soul as the innermost ‘Self’ as it really is” it is impossible to realize the non-dualistic or Advaitic truth. 

The seeker has many doubts or confusion on his quest because he is egocentric. The seeker then needs a mental yardstick to know ‘what is the truth’ to know ‘what is untruth’. With that mental yardstick, the seeker will know in which direction to turn and overcome all the pitfalls. If the seeker is Soul centric then he will know all the pitfalls and errors and ever aware of ‘what is the truth’ and ‘what is falsehood’. 

The body is not the ‘Self’. The ‘I’ is superimposed upon the Soul, the Self, which is present in the form of consciousness.

Realize the ‘Self is not ‘I’ but the Soul, which witnesses the coming and going, of the ‘I’.   

Self-inquiry is for making one realize the ‘Self’ is not the ‘I’ but the ‘Self’ is the ‘I-LESS Soul’, which is present in the form of consciousness.

Until one thinks of his body as the body and the world as the world, it is impossible to grasp the non-dualistic or Advaitic truth, because his views and judgments are based on physical self (ego or the waking entity or you) within the physical existence (waking).  

Individuality is a reality with the waking experience, but the waking experience itself is a falsehood. Thus, holding the view as an individual within the false experience is erroneous from the ultimate point of view.  The waking is a parallel dream and the dream is a parallel waking experience.

Perfect understanding removes all sorts of an obstacle in the pursuit of truth.  Only through constant repetition of words in my posts will make one think differently, but it also creates more doubts and confusion in his subconscious and his inner urge to know the truth even more intense. And it also helps to overcome some of our conditioning, which we have inherited from parental grooming and circumstances. 

Self-knowledge or Brahma Gnana or Atma Gnana leads to Advaitic awareness. In self-awareness, the Soul, the 'Self ' remains in its own awareness in the midst of the dualistic illusion. In Self –awareness there is unity in diversity or Oneness. :~Santthosh Kumaar