When one is not doing any work but only sitting quietly or lying down, it is generally not possible to focus attention on one thought or only related thoughts. The ego simply runs amuck in all sorts of directions into mutually unrelated subjects and topics. On the other hand if one is engaged in a particular task, the ego stops with thoughts that are related only to that task on hand. Suppose ego decides to do meditation, it refuses to cooperate; in fact it takes itself into most unwanted avenues. This is the situation of every person who perceives the world with in the waking experience. It is an impossible task to make the mind still, without understanding, what is mind, and what is the substance of the mind.
Controlling the mind or the ego with action conduct and deeds is impossibility. It is as good as trying to empty the ocean drop by drop. With what one has to control the mind and ego. Is it possible to control mind with mind, or ego with ego. Who has to control the mind, when everything belongs to mind in duality, because mind itself is whole experience of duality? Therefore, seeker has to understand what is mind, before indulging in pursuit of truth. Thus, finding the source of the thoughts or watching the thoughts, and focusing attention on the object, is not the means to acquire the non-dual wisdom, because all these acts and actions are performed by the ego, within the mind or duality. Thus seeker has to realize without the mind, the body; ego and the world are non-existent. And the body, ego and world together are mind. This point has to be understood by the seeker of truth.
The ‘I’ is in the form of mind. The mind is in the form of universe. The universe appears as waking or dream and disappears as deep sleep. The duality is present only when the Mind (I) is present. Mind (I) is present only when the universe is present. Universe is present only when the waking or dream is present. The duality is present only in waking or dream. In deep sleep there is no duality. The very absence of Mind (I) gives the sense of everlasting peace.
Deep sleep gives Everlasting peace. Therefore the experience of duality is the cause of the birth, life and death, pleasure and pain. Nature of the soul, the innermost self is like a deep sleep experience. Therefore, consciously experiencing the non-dual experience in the midst of waking experience by realizing the true fact, the body, ego and he world are one in essence. That essence is formless consciousness (soul).
To overcome the burden and bondage of duality one has to overcome the ignorance by realizing the burden and bondage are reality within the illusion (universe or waking).
Without realizing the soul as self, which the formless substance and witness of the three states, it is impossible to overcome the illusory duality (waking) which everyone experiences as reality.