Dreams of a brother using drugs can be a manifestation of subconscious anxieties or concerns about personal boundaries, control, or well-being. This type of dream could reflect the dreamer’s fears about a loved one engaging in harmful behavior or habits. In Hinduism, such a dream may symbolize inner turmoil or struggles with self-doubt. If you are worried about a family member’s health or behavior, this dream might be an indication of your subconscious mind processing those emotions. It may also reflect your concerns about the emotional or psychological state of someone close to you.