Stalactites form drop by drop over ages, so they stand for patience and slow, steady growth. Tradition also reads them as accumulated experience shaping the hidden spaces of the self.
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.