Om Namah Shivaya!
The Five Sacred Syllables: The Om Namah Shivaya mantra has five syllables: na-mah-shi-va-ya (sometimes called six syllable mantra by including Om). Thus, Om Namah Shivaya mantra is called five-syllable mantra, or Panchakshara Mantra (panch means five). Among other things, these five represent the five elements of earth, water, fire, air, and space. Thus, the Om Namah Shivaya mantra leads awareness in the reverse order from manifestation back to the source from which manifestation arose.