Bonding with a banshee is a dangerous and required rite of passage for all would-be Na’vi warriors. Like the direhorse, a Na’vi can connect to a banshee through a neural interface that allows animal and rider to move with apparent effortlessness through the skies.
The audience might recall one of Jake’s first lines in the movie where he talks about his dreams of flying that he experienced after he first became paraplegic.
In this scene, Jake lives out this dream by connecting with one of the mountain banshees as part of his initiation into the Na’Vi. As he hops on the back of the banshees, the audience waits with bated breath to see if he’ll succeed.
Not only is this scene visually stunning, but the viewers get to experience to joy of watching Jake fly over Pandora on this odd yet beautiful creature.