Mood: The mood of the video appears to be devotional and emotional, with a sense of longing and reverence. The title 'Mere Ali Moula Ali' suggests a spiritual theme, possibly related to Shia Islam. The overall emotion conveyed is one of piety and dedication.

Environment: The setting appears to be a religious or cultural site, possibly a mosque or shrine, with a large ornate building in the background. The presence of a temple-like structure and the attire of the individuals suggest a traditional or cultural setting, likely in India or a country with a significant Muslim population.