Mood: The mood of the video appears to be romantic and intimate, with a sense of closeness and affection between the two leads. The theme seems to revolve around love and relationships, possibly exploring the idea of rekindling a romance, as hinted by the title 'Phir Se...' which translates to 'Again' in English.

Environment: The setting of the video appears to be an urban or metropolitan area, possibly a city street or a quiet neighborhood, with buildings and streetlights visible in the background. The presence of leafless trees and a blue sky suggests a winter or early spring setting. The overall ambiance seems cozy and quiet, with a warm glow that adds to the romantic atmosphere.