Ra Ma Da Sa,
Sa Say So Hung
This is the Siri Gaitri Mantra, and is chanted for healing.
Ra means the Sun, Ma the Moon, Da the Earth, and Sa is Infinity. Say is the totality of Infinity,
and So Hung is "I am Thou". "Ra Ma Da Sa" is the Earth Mantra, and "Sa Say So Hung" is the Ether Mantra.