The fountain of youth is read as the wish to start fresh, to undo time or regain lost energy. Tradition also sees in it a quiet worry about getting older and what has been left undone.
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.