As far as I have understood from our previous conversation, the subconscient and the inconscient are world consciousnesses. Anger, fear, jealousy and other such forces are nothing but universal vibrations. They get individualised in a person which can be called an illusion.
Nothing of the subconscient or the inconscient belongs to the past lives. They carry the impressions of the present life only. The psychic being only carries certain impressions which have been touched by it and some other half finished learnings.
The psychic being, as it evolves, develops an individual psychic personality around its core which of course is the divine spark within it. This psychic personality holds within it all the impressions of the past lives that had a deep impact and have now got integrated with the psychic being as soul memories, spiritual seekings and unfinished strivings. It is called as the true mental, true vital, true physical.
When the psychic being enters a new body, it is these elements of the psychic personality that attract the corresponding elements from the universal nature needed for its growth. At the same time and in the process other elements that are part of the earth nature automatically get attached such as heredity, environmental conditions, the subconscient upsurgings etc from universal nature. But this is not just a random process. Behind the cosmic ignorance there is the cosmic truth that uses all this material to further help the psychic in its evolution. The psychic uses them as part of its further growth.
Affectionately,
Alok Da