Elminster hinted that Volo is a Chosen of some god or other but doesn't know it in a recent novel by Greenbook.
Yea, allegedly Mystra invested some divine essence into him during the Spellplague.
Uh, Volo never witnessed the Spellplague, he got stuck in the imprisonment spell that held him for 100 years until the Waterdeep: Dragon Heist tabletop game before the Spellplague happened. And the Spellplague happened because Cyric and Shar KILLED Mystra, believing that only the Shadow Weave would survive.
