The idea of documenting your ideas greatly manifests itself in unleashing more ideas. It instigates better thinking and upgrades the quality of your thoughts. Over time, the thread of ideas goes long and helps you to form and articulate your philosophy. It betters self-understanding and expands horizons. It challenges and compels you to develop yourself.
Documenting your ideas means writing them on a notepad, blog, book, etc. Let others see, hear or read them. Documenting ideas and thoughts spur creativity. So, start documenting, the sooner, the better.