Soham

Usage:

Stoke the fire within, balance brain waves

Meaning:

So (yin energy, mental, spirit)
Ham (yang energy, emotional, matter)

Soham represents a balancing of polatities, invoking the vibration of the cosmic Aum. It is also believed that chanting Soham can feed the inner fire, when chanted in this rhythm:

So - inspiration (cold air)
Ham - expiration (warm air)