Of course! Sometimes it is good to allow a natural creative process to happen. If you are passionate in your area but don't yet have your mission or goal set out yet, just start anyway! The process itself can lead to new learnings, knowledge and experiences. There is no rule, that you have to have a perfect idea in mind before starting. If you have been thinking about the perfect idea for some time - my advice is - just go for it! And enjoy the process of learning and exploring.