This is really cool! I love how unique and memorable each snippet of lore is. I can easily use this companion for an adventure filled with travel, or as additional flavor for an NPC, a settlement or even entire land the heroes may encounter.
Even if each superstition is a few sentences at most, they're imaginative enough that you can almost glimpse a fully-realized world behind it. Perhaps my favorite are the beasts said to prowl beneath the earth...I'd be horrified to encounter the Beast Of Many Mouths in the dark.