An arrow is read as direction and intention — where your attention is aimed. One pointing the way stands for guidance; one flying toward you is traditionally read as sharp words or criticism felt keenly.
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.