Navras - a Hindi word which, broken down, means nine ("nava") emotional states ("rasa") that are exhibited during music, drama, and the visual arts, the experience of which bring about a state of transcendental bliss. The nine different states are as follows:
Love
Humor
Pathos
Wrath
Heroism
Horror
Disgust
Supernaturalism
Peace

The lyrics from the song "Navras" are taken from the Upanisads, a set of documents written in sanskrit used in the Hindu religion. The lyrics in the chorus are directly from Don Davis' original version. There are also extra varying lyrics in verses of the song which I am unfamiliar with and have yet been able to find online. Here is the lyrics to the chorus of the song:

Brhadaranyaka Upanisad 1.3.28

Sanskrit:
asato ma sad gamaya
tamaso ma jyotir gamaya
mrtyor mamrtam gamaya

Om shanti shanti shanti

Jnani manasa saha
Buddhis ca na vicestate
Tam ahuh paramam gatim

English:
From delusion lead me to truth
From darkness lead me to light
From death lead me to immortality.

Let there be peace everywhere

When the five senses and the mind are still, and reason itself rests in silence, then begins the Path supreme

Source
Thanks to Skrizyo for help with the last verse.

I have done my best to gather the information on this page. If any of it is inaccurate, I appologise profusely. Please correct me.