With the power of mudras, the chakras, for instance, are freed from obstructions and congestion; the aura is cleansed of negative influence, and the subconscious mind is purged of its negative contents.

While practicing certain mudras, especially the types that generate or attract cosmic energies, the hands if clasped together for some time, would break apart and move independently.

The practitioner should not be too concerned over this but just go with the flow. The hands break apart for the simple reason that enough power has been collected and that the cleansing or magnetizing processes are now under way. When the body accumulates more power than it can handle, or when it has assimilated enough energy from the incorporeal worlds, the hands would naturally fall out of formation, vibrate and shake in peculiar ways. You may also find that your entire body moves, this is your body attuning with the energy wave.