A diving bell's descent in the ocean.
1st section - The drum and synth are the machinery used to lower the bell towards water, with the sound of wind in the background.
2nd (0:12) - Submersion. Joy and febrility at the sight of the wonderful landscape illuminated by refracted light. Presence of a kelp forest, schools of coloured fish, etc.
3rd (2:07) - The light is fading out, life becomes rare. An ominous calm is felt.
4th (2:40) - Total darkness, clostrophobia and anxiety sets in along with the awareness of the immense surrounding pressure.
5th (3:28) - The benthos is reached. Large potions of albino crab and such strange creatures surround the submersible. A mix of incongruous emotions are felt; resignation, serenity, joy, wonder, clostrophobia, etc.