When you sleep, your soul briefly returns to the place where it was created/goes to when it dies, and seeks nourishment. Everybody's soul is created with a little link (or you could say a greater entity calls it back) to that place so that it can return easily, but upon death, the soul returns via that and annihilates the link as if returns.
Also, as an added thingy, you could say the entity supplying the link, or residue of the links themselves, (whichever) is the source of all arcane power.
Other improvisational weapons/tools:
Icicles are useful as daggers,
Bag Of Holding filled with copper pieces used by chucking the contents at foes, (by strolen)
sleeves make useful garrotes. Ya can't cut anyone's neck, but you sure can choke 'em!
Flaming Logs make great clubs, (any Barbarians out there?)
and Bee hives are very effective when thrown at a mob of enemies. :-)
Perhaps divinations, if strong enough, can actually change the future, instead of predicting it.
Far to the north amidst the endless ice-flows it is rumored that a dwarven Walrus Totem clan exists. These rumors have been unsubstantiated to date, unless the dwarven sage Glurt Goblinguts is to be believed. He claims to once having encountered a troupe of huge dwarves, each standing a beard’s length higher than the tallest known dwarf. These dwarven “giants”, their hairy chins crusted with frozen shards of ice and dirt, hauled gargantuan yellowed horns or tusks upon their wide shoulders, and their helms, likewise, sported massive, down-ward pointing tusk-horns. Glurt Goblinguts later speculated that the impressive size of these dwarves was most likely due to their arctic diets, almost exclusively fat-based.