I like to think that when we draw from nature, we're drawing nature through ourselves–through eyes and brain and heart, and down the arm onto the page. If that's so, then every time we draw something, we take a little bit of it inside. It has become part of us; we understand it in a new and important way. We've made a connection.
Looked at that way, it doesn't necessarily matter what the end result looks like. The important part is the drawing through.