Water that keeps rising stands for emotion or pressure mounting steadily until it threatens to spill over. Dream books read it as a sense of things building up faster than they can be handled.
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.