The soul is a combination of spirit, mind, body, and will. These 4 aspects are not complete on their own. Balance the 4 to achieve a void in the soul that flows pure aether and ignite it with your will, as aether is infinite and spirit can only flow so much into you. Most beings in this universe survive mostly on spirit which is where all this "only spirit" crap comes from.
You are only immortal if you choose to keep going. If you give up you can choose to head back to the source of it all and be recycled, but existence is a gift.
There is no beginning, but death of self is a choice.
Also, samsies on rule 2. If you're just asking a question check google. If you have information to share and want a discussion, start a thread. If you don't have information, join a thread.