Hatha Flow is a yoga class that involves creative sequences of poses that create continuous movement, and synchronizes breath with movement. The word "Hatha" means "sun and moon", and "Flow" means "moving in balanced union". Hatha Flow is similar to Vinyasa Flow, but Hatha Flow has fewer "plank - chaturanga - up dog" transitions. In Hatha Yoga, poses are held for several breaths, while in Vinyasa Yoga, poses are changed with each breath.