We do not need to store anything (from the past, present or future) in the mind. Whenever thoughts arise from the impressions of the past karmas, we should not form the chain of these thoughts. This process lessens the effect of thoughts. This is one of the major processes of the Yoga. The effect of the Sanskaras (old impressions) of the Chitta gets erased automatically, in proportion to our efforts to stop the chain formation of the thoughts with awareness. Only after that we can be like clean slate.
When we are in Jiva nature, if someone talks about our mind, intellect, chitta, prana and ego, our inner self has a habit of starting to think about it. With the first thought, its corresponding second thought and the third thought produces a kind of continuity or chain. While in Atma, there is spontaneity in the expression without the thought. So, what should we do? Over a period of time, we should create a habit that when we are performing a task it is ok to think about pros and cons of the work but when we are not performing a task and mind starts to form chain of thoughts, we need to stop forming the chain of thoughts with awareness and knowledge. We can tell the mind that presently this is not your work. If the mind keeps thinking randomly and forming chain of thoughts we need to tell the mind that this thinking of yours is useless and not needed. So what happens. Just keep noticing the thoughts and be a witness of the thoughts. So, there is a possibility to develop the lively tendency to become increasingly Tatastha (detached, impartial).
So we have developed a stage where there is a possibility to be separate from the Prakruti (nature). This is a small step. Keep awareness and do not form chain of thoughts. This is a very small step but we can get the force and enthusiasm to be expressed at the level of Atma.
Pujya Shree Mota
Jivan Yog, Edition 1,
Part 1, Pages 400 - 401.