Om Surya Namaha is one of the twelve mantras to the sun given in the yoga meditation, Surya Namaskar (Salutation to the Sun). Surya Namaskar is the yoga asana (posture) for worshiping God by meditating on the Sun. As the energy provider for our solar system, the Sun is the primal representative of the inner sun of being.
The complete Surya Namaskar, which is helpful in support of the ability to concentrate, is a yogic meditation traditionally performed in the open air at dawn, facing the Sun.
But the Surya Namaskar is more than a physical exercise. It is a spiritual practice to dispel the darkness of our mind by the light of the inner sun. This is the aim of all true meditation. Our Sun, the star of our solar system, represents the highest form of divinity that we can see or contemplate.
The Yogi performs each of the asanas (postures) with a specific breathing pattern, chanting one of the twelve mantras for each pose. Each mantra is in honor of one of the twelve representations of the sun deity.
Below is a music video dedicated to the chanting of the Om Surya Namaha. Om Surya Namaha is the third mantra of 12 given during Surya Namaskar. It means, “Salutations to the God Surya, He who dispels our darkness.” Chanting this mantra is meant to invoke inspiration.
The purpose of meditation is stated so purely in this quote:
I bow to that which is the substance of all, which is all, the embodiment of the universe, the light on which the yogis meditate – Markandeyapurana