Mood: The mood of the video appears to be romantic and serene, with a sense of longing. The theme seems to revolve around love and separation, as hinted by the title 'Jaane Na Tu', which translates to 'You Don't Leave Me'. The overall emotion evoked is melancholic yet peaceful, suggesting a deep emotional connection between two people.

Environment: The setting of the video appears to be a tranquil and picturesque natural environment, possibly a mountainous region with a lake or river. The presence of the aurora borealis (northern lights) in the sky adds to the serene and breathtaking beauty of the scene. The silhouettes of trees and a snow-capped mountain in the background further emphasize the natural and remote setting.