Okay, you can be revived if your body is in tact more or less, because your 'soul' is being pulled out of the underworld and crammed back into your body. So if you get swallowed whole, that's a problem.

But, there's a means to grow body parts and even an entire extra body to replace any limbs you lose or your entire body. It just takes a while and some blood sacrifice.

But again, that only matters when the eye is closed. It's open now. That means perma-death.