Managing & directing prana

[TheSelf]

Hey guys,

I can feel the life force in my entire body, so much vibrations and tinglings or worms moving underneath your skin kinda feeling everywhere in my body, specially feel it in spine and head more intense of course, if i focus on any part of my body i can feel vibrations and tinglings there after just a bit of focusing!! Does anybody experienced these?? i just practiced Kriya Yoga, does anybody knows any books that shares information about how to work with it?