I have a relationship with my hair that when I sit down and really think about it sounds strange. It sounds a little like Samson's (of Samson and Delilah) only he lost power of God in his life when it was cut. I've experienced the opposite.
Most of my life I have had long hair. Long hair. I cried when I got it cut for the first time (to my shoulders) in junior high. I'd begged and begged to be allowed to get it cut. My parents conceded and when I was unhappy with the result they asked if I'd learned my lesson. Since then I have always been very afraid of getting my hair cut. Afraid of loosing what had been become a huge part of my identity.
But I have always chopped if off at significant spiritual milestones in my life. Whenever I wrestled with God over significant strongholds in my life I have cut my hair, choosing to push past the fear and choosing His will over my own.