On the surface this may seem like an obvious question but it's critically important to understand a deeper meaning behind your idea. It doesn't matter if your idea is about food, cars or curing cancer. Knowing WHY you exist will help you later craft your brand and who your ideal customers are.In addition there might be a point in your business development where you feel like you've lost focus. Revisiting your first principles as to why you exist may help rekindle your spirit and refocus your efforts. This is an exercise that will take several passes to refine. Spend time on it and enjoy the process of connecting the thing you'll bring into the world with a higher purpose of making people's lives better no matter how large or small.
You should complete the following tasks before proceeding to the current one.
List of resources, subject matter experts, trusted partners, and tools that can be useful to complete the task.
Don't stop now! Just pick the very next stage-card that resonates with your business and continue working on the correspondent tasks.