You know when you’re falling asleep, and you suddenly get the feeling that you’ve tripped? Your body lurches forward in an instant, ready to protect you instinctively from injury. You can almost SEE the ground rising to meet you. This occurs when the boundaries between you and the “you” in an alternate universe are weakest.
This is the feeling that happens when another “you” dies.
Another pasta that is similar and longer could be found here: The Feeling