Answer:
I can be found after you remove 6 letters from BSAINXLEATNTEARS
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I climb higher as I get hotter. I can never escape from my crystal cage.
Upon your lonely journey I accompany you, whether you travel through endless mountains or seas of blue. Wherever you go, I keep your place. Lost you're not, when I'm embraced. What am I?
I build bridges of silver and crowns of gold. What am I?
I flow from the Homerβs mouth when he sees doughnuts.