Mood: The mood of the video appears to be romantic and intimate, with a sense of longing or yearning. The title 'Mera Hona To Nahin Hona' translates to 'My Existence is Not Meant to Be', suggesting a theme of unrequited love or a love that is not meant to be. The overall emotion conveyed is melancholic and contemplative.

Environment: The setting of the video seems to be an indoor or studio setting, with a blurred background that suggests a neutral or muted color palette. The focus is on the two leads, a man and a woman, who are positioned close together, conveying a sense of closeness and intimacy.