How does it make you feel? The insignificance of our existence, everything that we ever did, or will ever do. There's a nice write up on building a model for the scale of universe: https://ciju.in/posts/a-play-with-universe And another one on visualizing time and big numbers (not as nice:) ): https://rohitshinde.in/blog/visualizing-universe-time-relati...
On a cosmic scale, all my problems are miniscule. Everything that we as a species worry about, from petty politics to global warming, is likewise insignificant.
My heart soars at the vast potential of our universe.