Once the life force leaves the body, within three kshanas, it chooses the next body. At the time of death the three most enjoyed experiences in that lifetime stand out as one’s last thoughts. The choice of the next body arises from the mindset based on these three experiences. These three thoughts will be based on one from each of the total karma (sanchita), this birth karma (prarabdha) and gathered karma (agamya). Based on this, the prarabdha karma will take shape for this birth.
Practicing spiritual life solutions in one’s lifetime will reduce the gathered sanchita karma of that life because these understandings will help one to live with awareness. Meditation helps to reduce the prarabdha karma. It acts not only upon the conscious and physical levels but also has the capacity to penetrate and clean the unconscious on a physical, mental and being level.
However, the largest balance in the bank of karma, the total sanchita karma, can only be dissolved through the master’s grace.
The more these three karmas are reduced, the less the constraints of choice for the next body. Since each of the three karmas will dictate a corresponding intense experience to be lived, the next body will need to provide a space for these experiences to be lived.
It is like this. If I say, ‘Let me meet a person who can speak English,’ I have more choice than if I say, ‘Let me meet a person who can speak English, Spanish and German.’ Similarly, if you have all the three types of karma, of this birth, gathered and total, there are more constraints on your next birth.
For example, the desire influenced by your total sanchita karma may be, ‘I want to be beautiful.’ The desire influenced by your karma of this birth, prarabdha, may be, ‘I want to be rich.’ The desire influenced by your gathered or agamya karma, may be, ‘I want to settle down in USA.’
It is more difficult to get a body for the life energy’s next birth that will lead to the satisfaction of all the three desires within the short gap of three kshanas. So, it ends up choosing a body that satisfies the strongest desire amongst the three desires.
The combined desires, the mindset, with which the life energy leaves the previous body is the vasana, the seeds of desire we earlier talked about.
These three desires, these three thoughts will be seen in one glimpse in three kshanas, as one vasana . The vasana is like a television channel and the body that attracts the vasana is like the television set tuned to this channel. The depth of the vasana and the body that matches the vasana attracts the life energy. Just like a television set tuned to the satellite channel’s frequency receives the corresponding electromagnetic waves, in the same way, the vasana is attracted by the body.
The life energy, the spirit, departing from the previous body enters the new body that it selected as that body leaves the womb of the mother. It enters the body in the birth canal. The darkness of the causal layer that it left from the previous body corresponds to the darkness of the mother’s birth canal. Since the body has been prepared by the energies of the parents, the life energy chooses the combined energies of the parents based on the desires, the vasanas, the mental attitude, with which it leaves the previous body. So the parents do not choose the child. It is the child that chooses its parents.
Having chosen a particular body, the spirit or life force has to satisfy the other two desires it had but could not choose an appropriate body for. However, during its transition through the darkness, the deep pain experienced by the spirit erases all memories of the vasana it carries before it enters the new body. The new entity no longer remembers the desires with which it left the previous body. Instead of fulfilling the desires with which it left the previous body, since it has forgotten them, the life energy in the new body seeks new desires and collects more karma.
Now, of the three types of karma, if one of them is gone, the choice constraints are fewer and the life force can be more focused in the choices. Cleaning the gathered agamya karma and this birth’s prarabdha karma can be done by the individual by understanding about life and by meditating. The master’s grace will reduce the total sanchita karma.
Once the total sanchita karma is cleansed, there is no reason to take another body. Then, if the next birth still happens, it is for no reason but out of overflowing joy and bliss. The birth is thus chosen consciously because there is no pull of karma. The life lived is a leela or reasonless play of an avatar or incarnation.
source: Living Enlightenment