Every time we reincarnate in a new body we conciusly forget our past deeds in order to ease our current duties, while certain skills we have learn are recorded in our DNA as whats known as atavic memorie, which are natural born talents. Our subconciouss retain our past memories and gave us intuitions about them just in order of need. I believe after total enlightment we access our overall memories in an absolute way, on the meanwhile, if it would be really nessesary, the technichs I personally know to access this memories are hipnosis, astral traveling through the akashic records, oniric traveling and meditation.
This was the message VoraX sent me in regards to my question. It seems to answer the things I was trying to ask. It explains the sort of demonic power I have. I have like some sort of power to throw people while barely touching them. Apparently my past lives passed that down to me.