When you dream glass means: The symbol for an invisible barrier that you build to protect your self is glass. Broken glass can be a sign of something negative, which is often a reflection on our current life. Broken glass indicates opportunities that have been lost and need to be repaired. The glass can be cut to reveal the damage that has occurred and how it affects you. You are putting yourself in a position where there is no recourse. If you swallow or eat glass, it means that your body absorbs negative beliefs or traits. Tossing glass up indicates that you are rejecting harmful belief systems and losing energy. Drinking from a glass is a sign of luck.
(in Dream Dictionary)