It's not a question of needing to. It is a simple fact that the evolution of life on earth has culminated in human brains that are capable of thinking about things like this.
Among other things [for some] it is fascinating stuff.
As to why particular individuals are more or less likely to be fascinated by it, that's embedded in the manner in which I construe the meaning of dasein.
Clearly, in not needing to fascinated by it, I would never argue that one ought to be.
After all, there are things we really do need to focus our attention on. Like sustaining our existence from day to day. Or, for most of us, paying the bills.
Karpel Tunnel wrote: Exactly, more or less my poorly communicated point in my response above. It will not help with practical issues and I can't imagine how it would help getting out of a hole.
Still, when you think about it, there are any number of human behaviors revolving around things that, over the course of living one's life, are not necessary to sustain one's existence. Instead you embrace them simply because [for whatever reason] they have become a part of what appeals to you or interests you as an individual: sports, the arts, hobbies etc.
My point is that these things -- which I call "distractions" -- are around precisely in order to take my mind
away from the hole I'm in.
Karpel Tunnel wrote: It could serve to make one feel limited - now about specific inability to comprehend something - or it could be used to make one feel small - whatever that would mean when connected to feelings or ideas of meaning in one's life.
True. And from my frame of mind these various reactions are no less existential contraptions --- as I understand the meaning of dasein as a component of ones identity, ones sense of self. And, thus, that there does not appear to be a way in which any particular reaction can be embraced as one that reasonable people ought to have.
Karpel Tunnel wrote: Elsewhere, I think, in one of your posts such imaginings of how big it all is and how small and limited we are seemed part of a counter-contraption. Like some people think we are so special and meaningful and you want to point out that we are actually small and can't imagine things. I can't see much use for that contraption, unless one wants certain specific people to stop being so full of themselves, if that's what one judges and further thinks this physical smallness in some way chips away at meaning.
Maybe, but this is how I do react [existentially] to the staggering vastness of all there is. It can elicit feelings of despair given the profound insignificane of "I" trekking dumbly from dust to dust through the "brute facticity" of an essentially meaningless universe. Or, from time to time, it can evoke a certain calmness given that you really have nothing to prove to anyone who are are basically in the same boat.
Karpel Tunnel wrote: 'I find this fascinating...'
That's different. Is there some reason you think we need to or should consider this vastness that we cannot really consider?
Here we are all basically groping about, grappling to pin down why we think and feel what we do here and now. But there are simply far, far, far too many factors in our lives going all the way back to the day that we are born, to ever imagine [realistically] we
can pin it down.
Some seem able to arrive at this frame of mind:
https://youtu.be/nlaoR5m4L80I'm just not one of them.