Mood: The mood of the video appears to be nostalgic and creative, with a sense of reverence. The theme seems to revolve around the making of a film or a musical project, possibly a biographical or tribute piece about a legendary figure named Shastri. The overall emotion evoked is one of artistic expression and homage.

Environment: The setting appears to be an indoor location, possibly a film set or a studio, with a brick wall and a doorway visible in the background. The atmosphere seems informal, with one person casually reading a newspaper and another preparing to play a trumpet.