Reducing Range of Subconscient

What should one do to reduce the range of the subconscient?

To grow in consciousness is the very aim of life on earth. It is through the experience of successive lives that the range of the subconscient is gradually reduced.

By yoga and the effort to find the Divine in oneself and in life, one hastens the work considerably and it can be done in a few years.

Ref : Some Answers from The Mother