One of the most profound scenes in the movie is the healing ceremony prayer in an attempt to save Dr. Grace Augustine, performed by Mo'at and the Omatikaya.
For educational purposes for students of the Na'vi language, I wanted to add the correct(ed) version of the translation and subtitles, so enjoy! (Translations below)

This scene made me want to learn the language, and so I started in 2010! :D
If you want to learn the beautiful Na'vi language, too, consider visiting https://Kelutral.org

Here's what's being said:
Tìng mikyun ayoer, rutxe, ma Nawma Sa'nok!
(Listen to us, please, O Great Mother!)
Srung si poeru, ma Eywa!
(Help her, O Eywa!)
Pori tireati munge mì nga...
(Take her spirit into you...)
... ulte tìng ayoer nì'eyng hu ngeyä ya!
(... and give it back to us with your air/breath!)
Tivìran po ayoekip...
(May she walk among us...)
... na Na'viyä hapxì!
(... as part of the People!)

Eo Eywa oe 'ia
(I lose myself [spiritually] before Eywa)
Lu hasey!
(It is finished!)

Go watch AVATAR remastered in cinemas while you can, it's worth it! :D

AVATAR and the Na'vi (c) James Cameron / 20th Century Fox / Disney - https://avatar.com