Well, it’s partly in an effort to help others. We all learn from what other people are doing, and it’s good to put it out there.
It’s also selfish. It will help my work if I take the time to distill my thoughts in to a form that is readable by others.
This form of clarification is also very useful in allowing inspiration to come. If you have taken the time to think about why it is you want to make photos, and what you want those photos to be about, the process becomes easier.
I’m writing this also in response to a few things I’ve been reading on the sites I follow about photographers lacking inspiration. How they’re feeling down about it and looking for the new camera, lens or film stock that will help them out.
This can be futile and depressing, because it won’t work. It might work for a little while, but ultimately it’s a road to nowhere.