Folk tradition gave the elder tree a protective spirit, so its dark berries are read as old wisdom, home remedies remembered from family and care handed down.
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.