Aye Link never seals the well if anything he unseals it, when as a child link drains the well via song of storms which he learns of Guru-Guru as an adult who heard child Link play it (anyone seeing a paradox?), doing so probably weakeaned the seal Impa put on BB in the well, would love it if it turned out the seal is traping BB in the form of DH or the DH is a child form of BB, as for BB being a tortured spirit, it'd have to be one hell of a melevelant ghost to form that, also the Bongo in the boss room of the ST states quite clearly the entire temple was made for BB so maybe it was a place of death giving over the dead to the care of the demonic BB who uses the souls to form it's body, WHO KNOWS, lol i personally would go with the temple was a house of the dead and a place of trial and worship to BB given that it's made to scale for the shadow beast to move about, and the amount of reincarnated dead found throughout, back a few steps i reckon Young Link weakens the Seal of the Well made by Impa when she sealed BB into it's depth's (if your look for evidence for Impa sealing BB look ingame same cutscene the Phantom Shadow Beast escapes) and it takes 7 years for it to weaken sufficiently for BB to shatter it's bondages and flee to the temple it house of worship and power, Link charges into the very depths of the temple searching for Impa and incounters several "torture" rooms and all sorts of other goodies as well, eventually link comes to the final trial of the dungeon the room just before the Boss Door, he successfully navigates it and falls to the bottom of the shadow well ( I dub it this because BB's power flow up and out of it poisoning Kakariko Village and also because the entire dungeon resembles somewhat Young link path through the Well Bottom in search of the Lens of Truth), Link enters the room of worship where those who worship BB are sacrificed to the beast itself and Link slays BB by attacking it's eye even though it's head is meant to be there, which leads me to think that BB was beheaded for an unknown crime which prior cost it, it's hands, so it came back as a malevolent demon beast to seek revenge and worship from the very ones who killed it in the first place, that is my thoughts this week on Dead hand and BB, look over it i seem to have gone into my idea of BB on the whole, lol i went off topic majorly by the looks of it ah well i like the idea and i wanted to pitch it to you all.