RA RA RA RA MA MA MA MA SA SA SA SAT HARI HAR, HARI HAR

HAR means Creative Infinity, a name of God. HARA is another form. HARI is the active form of Creation.

Ra is the sun, Ma is the Moon, Da is the earth, and Sa is Infinity.

SA TA NA MA is the Panj Shabad expressing the five primal sounds of the universe. "S" is Infinity, "T" is life, "N" means death and "M" is rebirth. (The 5th sound is "A".) This is one of the most frequently used mantras in Kundalini Yoga.

http://www.kundaliniyoga.org/mantra.html