Why change our circumstances

I have completely bought into the philospby that it doesn’t matter what circumstances we experience, we can choose our thoughts that generrate the feeling we want to generate. Remind me why I would want to change my circumstances. For example, I absolutely love to paint and draw. I can imagine that even in the most dire circumstances, for instance in jail, I could still draw. So, why should we strive for greatness? For growth? Is it that we’re either growing or dying? Is that it? Is it more about focusing on growth than in changing our circumstances? Is there a podcast that addresses this? I know you get this Q. Thanks in advance.