Mudra is muscular motion,
Meaning of Mudra:
The human body is comprised of 5 incredible elements(Pancha Bhoota or Pancha Maha-Bhoota).These components are
Human hand addresses entire body , so each finger addresses 5 incredible components
While doing pranayama or unwinding, sitting in the stance with Mudra will improve the energy in the body and make the mindfulness with body and brain.