If Hedda Gabler teaches one lesson, it is that dreams cannot be relied upon. In this play, all plans for the future are predicated upon falsities, lies, misunderstandings, or miscommunication. Whether it be marriage, friendship, babies, professional pursuits, or economic risk, no thing is a sure thing. The characters continually act based on these false certainties with regard to the future, and they are repeatedly punished for doing so.
Dreams are never fulfilled in Hedda Gabler because every character makes his plans dependent on someone else.