|Shiva Mahadev - Lord of the Yogis|
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).
Om or Aum is the pranava or seed mantra of all mantras. The two syllables na- and mah- can be translated as "I humbly bow to you". The three syllables shi-vaa-ya invoke Lord Shiva and all his energies to bless us and lead us to the highest state of peace and meditation. The mantra should ideally be chanted twice a day (morning and evening) for 108 times each. The two words, namah and shivaya, are also referred to as the panchakshara (five letter) chant. It is said that those who chant these five holy letters while meditating on Lord Shiva will be blessed by visions of Shiva - the Lord of the yogis.
ॐ नम: शिवाय: