This song is about someone sitting and watching the clouds change, like many of us have done as a child. Sometimes the clouds will change into shapes that remind you of a person or object. "I think we forget these pleasures as adults," Bush explained in a 1985 fan club newsletter. "We don't get as much time to enjoy those kinds of things, or think about them, we feel silly about what we used to do naturally. The song is also suggesting the coming of the next flood - how perhaps the 'fools on the hills' will be the wise ones."
Lee - Ottawa, Canada