He sees everything as one intelligence.
It makes him happy to reunite with this loving little ball of fur.
He is wrapping his mind around idea that somewhere in that infinite string of π digits converted into a bitmap, has to be the pixel-perfect representation of every flatmate spider he will ever meet, of every person he will ever love, of the last thing he will see before his death and of all information that has ever existed or will ever exist.
After accepting that it is no one else’s responsibility to bring him back to feeling good, he realized that being enslaved by worrisome thoughts is just a mental state over which he has complete control.
All truths are true and all paths are valid.