I Have Crossed The River Styx

In a large, open, room with very square, concrete-like walls and edges. A canal or river runs through the middle of the room. I am on the far side of the canal, having already crossed it, and kneeling over my backpack of supplies packing up for the next part of the trip. My team is around me. Behind me is a doorway with a stairway leading downwards. I realize that I have a blind-spot up and to my right, that up there is something mysterious and important, but something that I, for now, have to deal with not being able to see, and something that I have to trust will be okay.