That is interesting about your performance art.
Well, I think the concept of sacrifice makes sense of a lot of things that happen in life. I wonder how anyone can make sense of life's fabric without invoking the concept. Perhaps modernity is a style of living that tries to bypass as well as circumvent (and narrow to the point of denial) this element of sacrifice. It is very strange. For instance in another video I speak about how it is that I naturally try to see the elements of truth (or possibility of truth) in another person's hypothesis about me. This attempt to see the other's perspective, to put oneself on the same wavelength and to try to feel what they are saying is a form of agreeableness that somehow extends into a modality of self-sacrifice (which is especially sharp when the other person does not reciprocate). This is what I tried to describe in the video. But let me tell you how it is reduced and re-framed in modernity. It is viewed as "a tendency to imitate others", which is also depicted as generally human for all that.
With this in mind, I consider that traditional societies had a place and some wisdom regarding the role of sacrifice, but the modern person simply cannot even begin to understand it.