Parchment is old writing material made to last for centuries, read as tradition, wisdom and important records. It can stand for knowledge passed down or a long-kept secret.
When this appeared in your dream, what were you feeling?
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.