Glue stands for bonding and repair, the wish to make something whole again. Dream books also read being stuck in glue as a situation or attachment that is hard to step away from.
Where in your waking life have you met something like this lately?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.