Om Namah Shivaya (Sanskrit: ॐ नमः शिवाय; Oṃ Namaḥ Śivāya) is one of the most popular Hindumantras and the most important mantra in Shaivism.
Its translation is "adoration (namas) to Śiva", preceded by the mystical syllable "Aum". Om Namah Shivaya mantra is sung by devotees in prayers and recited by yogis in meditation. It is associated with qualities of prayer, divine-love, grace, truth and blissfulness.
Traditionally, it is accepted to be a powerful healing mantra beneficial for all physical and mental ailments. Soulful recitation of this mantra brings peace to the heart and joy to the [Ātman] or Soul. Sages consider that the recitation of these syllables is sound therapy for the body and nectar for the soul [Ātman]. The nature of the mantra is the calling upon the higher self; it is the calling upon shiva, the destroyer deity, to aid in the death (destruction of ego) and rebirth achieved during meditation. This goes generally for mantras and chants to different gods, which are different aspects of the higher self.