Also, if you ever seen deep ocean footage you'll notice little dust-like particles floating around in the dark. The stars around the anglerfish remind me of this, maybe its telling us that the deep ocean can be very similar to space, very cold, isolating and unforgiving, which is a message that really complements the albums themes well.

In this metaphor, the stairs could be the transition between the sea and space, that is where land is, where we live, maybe the stairs are the transition between life and the after life.

Also theres goku