A lump in the throat is read as emotion that cannot get out — grief, nervousness or something left unsaid. Tradition sees it as feeling caught between speaking and staying silent.
When this appeared in your dream, what were you feeling?
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.