We learn or see what we already know. But sometimes it is hard to articulate; Joseph Campbell can. It becomes black and white, time and eternal.
The eastern religions and ancient realigns share the path of enlightenment. However it is up to us to make the journey. Only the western religion is at odds with nature by making symbols facts.
The message is reiterated in several ways so we have opportunity to realize that we need forgotten symbols and can regain them through our dreams.
He leaves us with the question as to will we ever be able to become one with nature once more?
Hinduism gives us the best presentation or mythology to fit our time.
This is just a simplistic review of a presentation that has so much depth that no review can do it justice.