When you again and again go through the Nirbhaya Dhyana, naturally in few days your subconscious and unconscious patterns open up. In cosmic law there is no separate subconscious or unconscious. Only the deeper layers on which you are not able to lay your hands immediately, you name them as subconscious or unconscious. Again and again peeling your patterns you reach the subconscious and unconscious. There is no need for separate process other than the simple straightforward Nirbhaya Dhyan.
source: Akashic Readings on Death
