The glass in dream is a good omen if you are looking through it and if it is nice, clean and clear, then it shows the real view you see of the world. The dirty glass or scratched one shows your inner destruction. If you dream about the broken glass, then such dream foretells about the things you did and now you feel sorry about it, or it signifies the broken hopes. For example, it shows your work that wasnt done, or the relationships you worked so hard and it didnt fulfill your dreams. Overall, the drinking from the clear glass signifies happiness and fortune.
Read more about dreaming of Glass in other dream meanings interpretations.