A lenticular cloud hangs still and strangely smooth, often mistaken for something otherworldly, so it stands for the uncanny and the unexplained. Dream books read it as wonder at something you cannot quite place.
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.