The lower right hand is held up in a gesture, or mudra, that says, “Don’t be afraid.” Meanwhile, the lower left hand is in the mudra that is called the elephant or teaching posture; where the elephant has gone through the jungle, all animals can follow. Where the great teacher has gone all the disciples can follow. So what does that hand do? It points to the left foot, which is lifted, and that foot means “release”, whereas the right foot drives down onto the back of a little dwarf, whose name is Ignorance. The right foot drives us all into this realm of ignorance, the left releases. Creation, destruction – don’t be afraid because, although there is incarnation in ignorance, there is release.
– Joseph Campbell. Myths Of Light: Eastern Metaphysics Of The Eternal