Om Namah Shivaya Mantra in Sanskrit

The Om Namah Shivaya mantra or chant consists of six syllables - om, na, mah, shi, vaa, ya. When chanted properly, each syllable activates certain energy centers within our bodies as we meditate upon the energy of Lord Shiva. Shiva is often referred to as the part of the Hindu trinity which has dominion over death and destruction. Shiva is also considered the greatest of the yogis, the lord of meditation, and the lord of all that is mystic and mysterious in hindu practices. Legend has it that the holy river Ganges (or Ganga) is in fact a representation of Lord Shiva's long hair.

Some texts refer to the five letters as the forms of Shiva - Na-gendra (one who wears a garland of snakes), Ma-ndakini Salila (one who is bathed by the water of the Ganges),Shi (the supreme Lord), Va-shishta (one who is praised by the sages like Vashishta), and Ya-ksha (one who takes the form of Yaksha).