The reason you don’t know is because you’re going to die, and nobody is going to wrap their heads around death. You can’t do it. It’s impossible. You can’t conceive of your own death. You don’t know what it means. Any religious person who tells you, “Well, this has what happens when you die. When you die, you go into this other…” No. How do you know? You don’t know. Nobody knows.
So the “nobody knows” around death is a very stern liberator. It liberates you from bullshit. It liberates you from the need or belief that you can ultimately know. And it also brings you back to the collective celebration of here we are on this darkling plane, and rather than fighting like confused armies, let’s dance.