A floating island is read as a dream or ideal that has no ground beneath it yet — beautiful, but hard to reach. Folk tradition also sees it as a mind that has drifted away from everyday cares.
Where in your waking life have you met something like this lately?
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.