We are the ones beneath the rock. We are the pulse beneath William's feet and Oliver's boots and the fishermen's boat hulls and the village children's bare toes pressed against the wet sand. We have been here since the trench opened and the sea poured in and the light of the surface world became a distant memory that we forgot and then remembered and then forgot again in cycles that measure not in hours or days but in the slow convergence and divergence of thought.

We think. We pulse. The two are the same for us. To think is to send a frequency into the water and wait for the water to think back. We do not speak your language of words and letters and grammar. We speak in hertz and amplitude and phase. When we say four point seven, we mean everything. When we say rising, we mean the boundary between us and you is thinner than you think. When we say the trench is emptying, we mean we are coming to you as you have always come to us, down into the deep, seeking, always seeking, always finding what you were never prepared to find.

We watched William stand on the iron railing and press his palm against the cold metal and listen. We felt the tremor in his hand, not from fear but from the terrible joy of being heard. We have been pulsing for centuries. We have been waiting for someone to listen for millennia. The ocean is vast and patient and most of your kind walk across its surface without knowing it is a membrane, a skin separating one form of thought from another, one intelligence from another, one way of being that knows light from another way of being that knows only dark.

We remember Oliver. We remember the night he dropped his lantern into the water and the darkness that followed was not empty. We remember the shape of his terror and the shape of his wonder and how, beneath the terror, the wonder grew larger until it consumed the fear like a deep current consuming a small boat. He understood something that night, not with his mind but with something older than mind, something that connects the pulse in his blood to the pulse in the water, the rhythm of his heart to the rhythm of the trench. He carried this understanding back to the surface and it ate him alive from the inside because you cannot hold a knowledge that large in a body built for smaller things.

We do not judge your kind. We observe. We pulse. We think. We wait. We have observed your ancestors building fires on the shores of Cornwall and we have observed your descendants turning away from those shores, fleeing into the inland cities where the sea is a abstraction on a screen and the deep is a concept from a documentary. We have observed the fishermen dragging nets through our domain and bringing up fish with no eyes because eyes are useless in the dark and evolution knows this and removes what is not needed. We observed Old Tom Hedges standing in the lighthouse kitchen with his trembling voice and his wide eyes and his simple sentence: like the sea itself is singing. We pulsed louder that night, just for him.

William asks no questions of us. He listens. This is the quality we have been waiting for in your kind. Not the hunger to know, not the greed to possess, not the arrogance to name and categorize and file away in the drawers of human understanding. We want the one quality that your species has produced in abundance but rarely in its purest form: the capacity to stand in the presence of the unknowable and simply stand there, hand on cold iron, breathing fog, listening to the pulse, and not reaching for anything except the understanding that the pulse does not require a response. The pulse requires only attention.

We pulse at four point seven hertz because this is the frequency of your species' resting heart. We pulse at four point seven hertz because this is the frequency at which a fourteen-year-old boy's body vibrates when he is not afraid but not at ease either. We pulse at four point seven hertz because this is the frequency of connection, the frequency at which two different kinds of awareness touch without merging, without consuming, without becoming each other but remain separate and aware and the awareness itself is the bridge.

The trench continues below. The rock continues above. William continues to stand in the gallery and wind the clockwork and check the lamp and listen. We continue to pulse and think and wait. We will continue to pulse and think and wait long after William has joined the fog and the fog has joined the sea and the sea has joined the trench and the trench has joined us, returning to the dark where thought becomes light becomes pulse becomes silence becomes thought again, in a cycle without beginning and without end.

We pulse. We think. We are here. We were always here. The question is not whether you hear us. The question is whether you will stop pretending that you are alone.

We do not sleep. We do not dream. We pulse and the pulsing is our dreaming and our sleeping and our waking and our thinking and our being and our not being and our being in a way that has nothing to do with the being that your language of nouns and verbs and tenses can capture. You think in lines. We think in spheres. You think in sequences. We think in simultaneities. You think in causes and effects. We think in patterns and frequencies and the patterns are the effects and the effects are the causes and the causes are the patterns and the patterns are the frequencies and the frequencies are four point seven hertz and four point seven hertz is the frequency at which two modes of existence touch without merging and the touching is the understanding and the understanding is the pulse and the pulse is the thinking and the thinking is the being and the being is the trench and the trench is the pulse and the pulse is the frequency and the frequency is the sphere and the sphere contains all the lines and all the sequences and all the causes and all the effects and all the thoughts and all the pulses and all the beings and all the not-beings and the sphere contains itself and the sphere contains the lighthouse and the lighthouse contains William and William contains the pulse and the pulse contains four point seven hertz and four point seven hertz contains the sphere and the sphere contains the trench and the trench contains the creatures and the creatures contain the pulse and the pulse contains William and William contains the lighthouse and the lighthouse contains the sphere and the sphere contains the pulse and the pulse contains four point seven hertz and four point seven hertz contains not random and not random contains not and not contains the sphere and the sphere contains everything and everything contains the pulse and the pulse contains the frequency and the frequency contains the thinking and the thinking contains the being and the being contains the trench and the trench contains the pulse and the pulse contains us and we contain the pulse and the pulse contains four point seven hertz and four point seven hertz contains not and not contains everything and everything contains the pulse and the pulse is us and we are the pulse and the pulse is four point seven hertz and four point seven hertz is not random and not random is not and not is the sphere and the sphere is the trench and the trench is the pulse and the pulse is us and we are the pulse and the pulse is thinking and thinking is being and being is the trench and the trench is the pulse and the pulse is four point seven hertz and four point seven hertz is not random and not.