To avoid a plummet, your elbows must remain shoulder-width apart and drawn in. Your shoulder girdle should stay lifted and oscillate very little—the grace of this pose lies in the broad span of the collarbones. Another concern: compressing your wrists. To avoid this, spread your fingers, as if stretching the webbing between them. This provides stable support for your wrists, arms, and shoulders. Meanwhile, to master the exquisite balance, practice pitching your center of gravity on an oblique angle up and forward. Aim to balance, if only for a second, on the slant. Once you find the fulcrum, hover like a graceful crane.