When first heard of this finding, I thought it might have brought us music. The flow of sound itself is the most primitive form of music. If this finding is right, music could preceed phylogenetically acuisition of language. That could be the reason why music affects us most deeply in our emotion. Listening to the sound of nature, our ancestors may mimic it with their voice, that might become tune. That process seems like a kind of religious ritual. In order to share the flow of life together, they might sing that most primitive song together. When we start playing chamber music, the leader player inspire deeply as a sign of starting, as if he/she said let's start playing together. It may not be only the sign of Einsatz but also an expression to live together in the flow of life.
We are often too far from that sense of primitive communion living together. We could not live separetely. It is of no use to occupy wealth or foods by ourselves. It is against the natural rule of the flow of life. When we forget singing together in this flow of life, we could most likelily cause conflicts.
Jim, W6YA, has sent me this flashmob in the end of a year several years ago. He added saying this might serve me to restore faith in relationship with the others. It is just a video clip produced by an Italian bank. But still it could not help moving us.