The pen stands for self-expression and the power to put your mark on things. A pen that will not write is read as a voice held back; a flowing one as words that are ready.
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.