Considering where your(Self) ends and the outside world starts, it gets tough to make this distinction. Is it just after our bones and skin that our(Self) ends, and the outside world begins? We can define the Self in a very Descartes way "I think therefore I am." In that case, I exist in some bounded time and space (I am not being eternal) - a very Hume kind of argument. Therefore, we could tend to perceive the boundaries of the "Self" as this body we inhabit (or even our mind that we - possess), a very Hagel kind of argument. But is it really so, or are we somehow tricked into believing it?
Let me give an example here, and suspend your disbelief if these examples don't quite resonate with your(Self). Consider where your decision to have a delicious McFlurry starts and Mcdonald's commercials flooding your news feed ends. It gets tough to disentangle these two events. Also, consider where your positive, loving character starts and your positive, loving upbringing from your parents ends. We might view these separate events to be one whole event.
Now let's consider that you have a very distressed friend you are meeting for some positive support. Consider where your decision to bring a consoling McFlurry and a positive loving hug starts and where Mcdonald's commercials and positive, loving upbringing from your parents ends. We might even consider that Mcdonald's commercials and your loving parents are consoling your distressed friend. Where does that leave your(Self) - where is the "I" in that exchange?
It might leave our "Self" as a mediator in this one big event that gets hard to disentangle - a very Hagel kind of argument. Suppose we take this argument to infinity (in space and time). In that case, we might even consider that the "Self" has no boundaries and that all existence is just one big whole. Let's even go as far as to say that whole existence is just one big event that gets hard to disentangle into separate parts bounded by space and time.