Root lock. The first of three interior body "locks" used in asana
practice to control the flow of energy. To activate mula bandha, exhale and engage the pelvic floor, drawing it upwards towards your navel. If you don't know how to access the pelvic floor, think of it as the space between the pubic bone and the tailbone. Initially you may need to contract and hold the muscles around the anus and genitals, but really what you want is to isolate and draw up the perineum, which is between the anus and genitals. Do not hold your breath.
Engaging mula bandha while doing yoga poses can give the postures an extra lift. This is especially useful when jumping.
Pronunciation: Moola Baun-da
Alternate Spellings: Moola Bandha