Unique skills and abilities of heroes.

I can't recall the exact sequence of spells right now (I'll let you know as I progress). There's another question, though it's a bit off-topic. Humans have a skill called "Ash's Favor," and the description says that the hero can now "feel with their heart" where Ash's tear is located; attempts to dig up the tear in the approximate location usually end in success. I tried digging in a random location – without success. What does this skill mean? The description seems poorly written! Or does the digging radius increase (although what's the point?)? Guys, if anyone knows, please help!