海底三万英尺渊谷
[hăi dĭ sān wàn yīng chĭ yuān gŭ]
Inspired by the deep sea, 'An Abyss 30,000 Feet Underwater' reflects the idea of diving into the profound unknowns, mystery, or exploring uncharted territory, both literally under the ocean and metaphorically in life or thoughts.