Reaching the end of the line is read as completion — a stage of life that has run its course. Dream books link it to the need to step off and choose a new direction.
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.