the 'earth' mudra prithivi is said to activate the root chakra and increase one's sense of stability and nourishment. this mudra may also increase body temperature-- so if you're a lady in the midst of a certain change, prithivi mudra might not be your favorite.
connect the thumb and ring finger, extend your other digits. inhale, exhale, repeat. simmer in a sense of wonder and consider how the roots feed the flower.