Origin can be a place where ones roots begin, whether it's cultural, psychological, spiritual, but for me my origin would be my family and my Vietnamese-American roots, which I assume would be different for most people. And this relates to the movie we watched last week titled, "Somewhere Between," in which your origin may not be the place that you were born, but rather the place where you were raised. But your identity is something that you choose and that you label yourself as and that could change, which is why our identities are in flux. So while all the girls in the movie have a family identity as being American, their personal identity could still have them identifying themselves as Chinese, but it is honestly up to them to decide what their personal identity is.
I think if one had a fixed identity then they would be able to clearly know who they are and that they would have a very firm belief in what they believe to be correct, which is a positive and a negative. I believe a changing identity is best in that we have opinions, but that our initial opinions may be changed, because maybe we were informed or found ourselves in the wrong. The flaw with a changing identity or an identity in flux is that we don't know what is right and that we have to discover ourselves between what works and what doesn't. It requires more work and thinking, but overall I think having a not-fluid sense of identity is best.
*Disclaimer as always. Comments are open. I do read all of them, though I may usually never respond back. But just know I do read my comments, so feel free to respond.