The assembly line is read as repetition and feeling like one small part of a larger machine. It can stand for routine that numbs, or for the satisfaction of reliable work.
Does the traditional reading fit your dream, or did it mean something else to you?
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.