van, read the tiny little book 'soul traveler' by albert taylor. and if you have time, maybe a book or two by hank wesselman.
i'll add that the vibrating spine is a common phenomenon as a precursor to out of body experience and, consequently, other aspects of expanded consciousness.
kundalini is just a name from a wisdom tradition. by whatever name you call it, the experience can be encouraged, practiced, worked with, used for personal development, etc. energy is what we need and managing it is what we must do.
-larkin
