Glass (not a drinking glass) often indicates a strong psychic or intuitive ability. Glass walls emphasize this ability. Literally you have the ability to see when others can only see a wall. We don’t all see it as glass.
A drinking glass, or any vessel that can carry water, can symbolize your womb – a place where new life can develop.
To refuse a glass of milk in a dream means you had or have major issues with your mother. Symbolically you are refusing her nurturing milk.
