Sometimes we want an answer or an idea right away. Creativity is a wait-and-see process not an on-demand process. When we don’t have an answer or an idea right way, it could be from a conscious block, or we aren’t in a certain mindset to receive the idea and/or answer from our unconscious minds.
When there is a delay, our unconscious minds is searching from our vast storehouse of experiences to put together ideas to help in finding a solution. The ideas usually come to us when we least expect them, usually when we are attending to other things.