I love to observe and study plant, animal, and mineral forms. I'm curious about what I see and also love to look for patterns over time and from season to season. Sketching what I observe seems a natural extension of something I enjoy.
I like the idea of using a journal to capture and remember special moments, or to answer a question. It also makes sense to me that something you've observed closely enough to sketch is something you'll remember, something that becomes a part of you.