Yes, aren't we creating our unique "concepts" by "setting up certain
limitations"?
Yes, that's the idea. I'm just learning to embrace all limitations as a force for creativity.
For instance, these days, I have very little free time and when I get a chance to play music, it's usually for a really intense 15 minutes. I find that I can get quite a bit done this way... this time limitation is actually beneficial and I find that rather counter-intuitive.