Sit in half lotus position with your back straight. Concentrate on the first Chakra. For men concentrate on your Hwe-um, between the anus and base of the penis. For women, concentrate on the back of the uterus between the urethra and anus. If you can’t feel the area, contract and relax your sphincter muscle repeatedly. As you repeat this exercise, imagine a stream of breath coming in and out of the first Chakra. Men should concentrate on the feeling of pressure on the Hwe-um. Women should concentrate on the feeling near the opening of the uterus, which is located about one inch below the end of the spine. Through repeated contraction/relaxation of the sphincter muscle, you can awaken the sensation of the first Chakra, amplifying the energy in the area. Repeat the contraction / relaxation of the sphincter muscle, you can awaken the sensation of the first Chakra, Amplifying the energy in the area. Repeat the contraction/relaxation 100 times. You will have a sensation of heat, as energy courses through your body. A healthy first Chakra is the color of clear red, imparting a feeling of warmth. A problematic first Chakra turns to the color of a dying ember.

From Healing Chakra by Ilchi lee