Consider the possibility that the hair on your head is there to do more than just look good. Man is the only creature who grows longer hair on his head as he grows into adulthood. Left uncut, your hair will grow to a particular length and then stop all by itself at the correct length for you. From a yogic perspective, hair is an amazing gift of nature that can actually help raise the Kundalini energy (creative life force), which increases vitality, intuition, and tranquility.