A mezuzah on the doorpost blesses everyone who comes and goes. It is read as protection of the home and a reminder of who you are each time you cross your own threshold.
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.