Rinpoche teaches students at Awam Tibetan Heart Center OM AH HUNG SHRI Mudra Yogas - Yoga of Fingers.
There are also different mantras that enhance the finger yoga. For example, the middle finger can be linked to the sound of OM. The baby finger to AH. The index finger to HUNG. While the ring finger is Hri and the thumb is ‘TRAM’ or ‘DRUM’. Sometimes, Drum can mean mandala. TRAM means the Five Buddhas and the Five Wisdoms. Each time we touch our thumb to another finger, it symbolizes contacting the Five Buddhas and the Five Wisdoms along with the emotion or mantra for that finger. You can do these simple mudra sequences as many times as you like throughout the day.
OM - Thumb and middle finger - Joy
AH - Thumb and baby finger - Wish Fullfilling
HUNG -Thumb and index finger - Peace
HRI - Thumb and ring finger - Power
~ Khenchen Lama Rinpoche, Tibetan Meditation Yoga: Ancient Teachings Living Today