Knowing is not thinking. Knowing begins when thinking ceases, having finished its work. Every new knowing is a joy, for it is a new experience of unity.

It is not healthy to be thinking all the time. Thinking is intended for acquiring knowledge or applying it. It is not essential living.

It becomes necessary to realize that the body is not conscious, but we are conscious of the body, also that the mind is not conscious but we are conscious of the mind.

If you are thinking of nything with dependence upon it, there is a motive of curiosity, or pleasure, or success, and though the thinking will help towards satisfaction you will still be in bondage. There is no harm in this, but the higher samadhi, without such motives, is best.