Submerged deep in the abyss, the castle awakes. Each brick, an echo; each echo, a lesson. Peruse the corridors with caution, for the spirits of ages past linger.
Instruction 1: Navigate the stone halls as you would a labyrinth of the mind, letting intuition guide amidst whispers of forgotten kings.
Erratic thought: If the octopus was an architect, would it build with silk or shadow? Delve deeper, yet remain afloat.
Instruction 2: Remember the tide does not forgive. Measure each step against the rhythm of the ocean's breath, an errant tidal muse.
Erratic thought: Broken chandeliers of starlight hung within the ceiling of the barracks, reflecting forgotten dreams in turbulent waves. Do they remain, or do they fade?
Seek the wellspring of ancient knowledge, here. Or perhaps, explore the court of spectral lords there.