Urdhva Mukha Paschimattanasana is the upward-facing version of the forward bend known as Paschimattanasana (Deep Forward Fold). This floating forward bend embodies the stillness required to discover the inner body. If you enter it with force and no awareness of the inner space of your pelvis, then the pose is essentially impossible. To practice this pose, you will need a calm, steady mind.
Start in a supine position. Inhale and lift your legs over the top of your head. Touch your toes to the ground behind your head as in Halasana (Plow Pose). Flex your feet slightly and hold on to them near your heels. Exhale to stabilize your pelvic floor. Inhale as you gently roll up to a seated position by rolling up each vertebra. Use your hips to initiate and direct your movement. Keep your legs straight and maintain the same grip on your feet throughout the transition. Find your balance with straight arms and straight legs. Exhale and fold your chest toward your thighs by drawing the head of each down into its socket. If you can’t manage the roll-up transition with straight legs, then allow your knees to bend as you come up and straighten your legs as much as possible once you are seated. Stay here for five breaths. Inhale and straighten your arms, exhale and settle into the V-shape pose, and then release your feet, returning to seated.