Pranayama practices such as sama-vritti are often thought of as even more powerful than asana practices. It is important when first learning pranayama to practice sama-vritti gently and without strain.
Sama-vritti is often described in contrast to its alternative ratio breathing technique, vishama-vritti, in which the inhalation and exhalation are made to be uneven in length. Considered a more basic pranayama, it is recommended to master sama-vritti before attempting vishama-vritti.
Sama-vritti is also thought to be very beneficial because it engages the parasympathetic nervous system, which helps the yogi to transition into a more relaxed, restorative state. It is said that sama-vritti promotes balance and evenness in the natural flow of consciousness. This enhanced level of equilibrium can help reduce agitation and anxiety.