There is a life-force within your soul, seek that life.
There is a gem in the mountain of your body, seek that
mine.
O traveler, if you are in search of That
Don't look outside, look inside yourself and seek That.
Mewlana Jalaluddin Rumi
http://www.poemhunter.com/poem/there-is-a-life-force-within-your-soul/