Cool question.
I have experienced a change in 'location' of my sense of self- it 'spreads out'. It is a feeling that "I" do not reside in the particular head/body of Bageldaughter, but instead in both my head/body and the other things I happen to be keenly aware of. If I am deeply engrossed in a conversation or social activity, "I" will begin to be identified with the group of individuals as a whole. The particular intentions, thoughts or feelings that I typically associate with myself lose some of their distinguishing quality from the ones I perceive from others.
There is often an accompanying "spreading-out" of "my" location in time- the round-trip time of ideas through a group is often slower than just through my own head. I will get the sense that my "current moment" spans back to a thought that originated in my friend's head one minute ago!
I can invoke this sensation pretty reliably. It can be fun. I get worried when people talk about experiencing this type of thing as some kind of higher truth than normal, because it seems like a sign of mental illness that may not end well.
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