It has been very alive for me how I box myself and life in through beliefs and identities. I create a dividing line through life, and saying that this is true and ok and that is not (beliefs) and I am this and not that (identities.)
Since life is bigger than any box I try to put it and myself inside of, it will come knocking on the door. It wants to be let in, and ultimately, it invites me to allow boxes in general go... or at least the taking of them as true, and the taking of them as defining who I am.
When life comes knocking, when it shows me that my belief is flawed and my identity too narrow, and I resist and try to hold onto my beliefs and identities, there is stress.
The parallel is very close to having someone knocking at the door of my house that I don't want to let in. I try to ignore it, I become agitated, tense, frustrated, rigid, angry, sad, depressed... there may even be a sense of being driven, hunted, haunted. At times, there may be a relief. Whomever is trying to get it is not there anymore, or at least has quieted down. But after a while, it comes back. The knocking is there again. And my stress is there again.
The only solution is to take a closer look at what is happening. Is this boundary, this idea that I take as real, really an accurate reflection of life, and of what may already be more true for me? And is this boundary, this identity I take as defining who I am, an accurate reflection of who and what I am, in my own immediate experience? Is there something that is already more true for me, if I am receptive to it and examine it closer? And is what I find closer to what life is trying to tell me about itself and my life?