Ashwini Mudra, is also called ‘Horse Mudra’ as this is done by a horse while defecating and many times during the day.
In this mudra, contract the anal sphincter muscle rhythmically to strengthen the pelvic organs (bladder, uterus, cervix, vagina, and rectum). Unlike most of the Hasta Mudras or Hand Gestures, in this mudra, there is no active involvement of hands or fingers.
The contraction action of anal sphincter muscle in Ashwini mudra reverses the energy flow direction. Therefore, the energy that normally flows down and out of the body (Apana Vayu) now starts flowing up into internal organs. When Apana Vayu fills with full capacity in lower organs, the pressure developed at the bottom of Sushmana Nadi which makes Prana start flowing through it. Obstacle free flow of Prana through Sushmana Nadi enlightens a person and it’s the sign of awakened kundalini.
When you do the Ashwini Mudra correctly, you will feel the upstream flow of Prana is the sign. You might sense slight shivers run from the bottom of the spine and along it to the top of your head. So, you inhale, hold your breath, do the required number of contractions, then you relax the anal muscles, but do not release the Ashwini Mudra yet after you done the last contraction; keep it for a little while instead, then exhale, and while releasing the mudra try to feel how prana after reaching the top of your head, goes down through your muscles, bones and organs, and as it gathers in the areas a little below the navel. Practice helps to gain a good understanding of this Mudra.
Recent abdominal surgery and Anal fistula