Boundary
To see a boundary in your dream indicates that something is restricting your growth and hindering your goals. You are being limited.
To see stained glass in your dream signifies spiritual healing and enlightenment. You are seeking guidance from a higher source. Consider the dominant colour in the stained glass to determine how you need to incorporate the symbolism of that colour into your Self.
To dream that you are using marijuana implies that you are trying to escape reality. Perhaps you are trying to numb some emotional or psychological pain. If someone else is using marijuana or trying to get your to use it, then it indicates a negative influence in your life. You are on the verge of losing control. Perhaps you feel that your identity and sense of self is being compromised or disrespected. The dream may also be a reflection of waking drug use.