Im not an expert on Christianity, just someone seeking the obvious truth: that all religions talk about the human soul, and there is only one truth to be found.
However, there is something fundamentally wrong with this sentence:
the pre existence of the soul has nothing to do with reincarnation.
This is a qigong forum, so we're talking about human energy, and its process of transformation; what the Buddhists refer to as the mindstream.
What else do you have to offer this conversation, regarding more specifically the process of reincarnation (aside from "you are not arguing against it")?