We are all 3 fold beings. According to bible knowledge, we are the trinity. The father is our spirit, the mother is our astral body and the son is our fleshly body. When we leave this earth, it is our spirit that guides our astral body back to the ether. Our astral body does 2 things, leaves behind a record of our life which is our soul and encapsulates our spirit so we may travel. The son, or our body of flesh is the light in this world, which allows us to interact on earth in a tangible manner. Without the flesh, then we wouldn't be able to experience life on earth. To comprehend this fully, we'll begin to realize that death as we know it does not exist. We are all infinite everlasting beings that are constantly evolving and expanding our own existence.