It is impossible to overcome the ego with the ego

Coming to the point the ego means physical self or limiting the mind to the physical body. Every action is associated with a series of thought processes within the waking experience. But the point is, the ego, while being involved in this action does not get into other thoughts which are unrelated to this action. If one leaves the ego to itself it will wander aimlessly over things totally unrelated to each other. This dissipation of the ego does not occur when one focuses it into one action.  While doing that action it dwells on only those things which are related to the main action. To this extent action itself disciplines the ego. Of course it may not be a complete discipline.  But in some sense there is mostly a uni-directional restriction or piloting of the ego. The whole human experience is based on the ego. The ego cannot be destroyed by action and conduct and deeds.

One has to understand the fact that,   the ego, physical body and the world exist together. If one is missing the duality is impossible. Thus it is no use of struggling to overcome only the ego. All other teachings propagate to overcome the ego to get  self-knowledge or Brahma Gnana. There is no use of struggling to overcome the ego. It is impossible to overcome the ego with the ego. Only by proper and perfect understning of the mind, it is possible to overcome duality.  

The ego,body ant the world appear together and disappear to gather. Deeper self-search reveals the fact that, the ego,body and the world are one in essence. Therefore perfect understanding what is what is needed. The ego ,body and the world are product of ignorance. thus one has to get rid of the ignorance in order to acquire self-knowledge or Brahma Gnana or Atma Gnana. 

The ego is the false self (waking entity) within the false experience(waking).  

It is the Self that is in illusion and it is the self that gets free from the bondage of the illusion. The illusion is present in the form of mind. Mind is in the form of universe. Universe appears as waking or dream and disappears as deep sleep.  The individual experiences of birth, life, death and the world are within the waking experience.  The dream is parallel waking experience and waking is parallel dream.

Deeper self-search reveals the fact that the, self is neither the waking entity nor the self is the dream entity but the self is formless soul, which witnesses the coming and going of the three states in succession without the physical apparatus.  This has to be mentally grasped and assimilated to realize the formless soul, the innermost   self is nothing to do with the three states. On the standpoint of the three states, the three states are mere illusion.

The practical life within the practical world, which is present as waking experience, is mere illusion. If waking experience is mere illusion than the individual experience of birth, life, death and world are mere illusion.   If the experience birth, life death and the world are mere illusion, it means the form; time and space are mere illusion.  If form, time and space are mere illusion, it means the past, present and future is mere illusion. Thus it is necessary for the seeker to realize the fact that,   form, time and space are one in essence, in order to realize the three states are one in essence. That essence is consciousness. Thus all the diversity is created out of   formless consciousness. Thus no second thing exist other than consciousness, the innermost self. Seeker of truth has to constantly reflect on the subject in order to get firm conviction of the truth.  Seeker has to reflect on the same truth again and again until it becomes reality. One needs to constant reflect on the subject until he gets firm conviction of what is what.