"Phan states repeatedly, for example, that to acknowledge a complementary relationship between Christianity and other world religions is not to claim that the teachings of those religions are in any sense equivalent”  
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Within the article “Key” in the link below, I attempt to demonstrate what the early Greeks understandings were of the Truth, and spirit/soul on the Spiritual/ Astral plane. While also within the drawings provided, what the early Egyptian knew of “Dream Structure” that incorporates their understanding of the divine spark /soul held within the confines of that structure.
Perhaps some may consider reading my article in the link, with the other links, that relate to this matter.
Note the link to “Drawings” sometimes takes a few minutes to open also it can be downloaded.
http://www.v2catholic.com/background/2012/08/2012-08-17key.htm
 kevin your brother
In Christ