The Crimson Reliquary of the Hollow God

Video and more pictures: https://imgur.com/a/nzsVRdf
First version of the build: https://imgur.com/a/YQfp5TT

Everything, unless stated are all my own idea. I have had a handful of people ask if the build represents anything already existing. I inform them that I post my madness and it all comes from my twisted brain.

Before the skies of Rechidna Prime were blackened by industry and war, there existed a being known only as the Hollow God.
Whether it was a deity, an ancient machine, or something far older, none could say. The Gorath discovered its remains buried beneath the planet’s crust.
It was a colossal skeletal entity.
Their heart still pulsed despite the long since decayed body.
Divinity is what the Gorath collective viewed this phenomenon as.
A cathedral was erected, encasing the dormant beating heart.
The build consisted of bone-like alloys and living machinery.
The red crystals distilled synthetic blood and neural essence.
Embedded throughout the structure to pacify the faint pulses echoing the halls.
The Crimson Reliquary of the Hollow God was established.
With the delusional truths and whispers of limitless knowledge, scholars, and priests sought out an audience with this entity.
Some who entered the structure survived and others perished.
The creature was feeding.
The Gorath for centuries were blinded by the awful truth.
Every desperate plea for salvation nourished the remnants of its consciousness. The crimson crystals lining the reliquary were not holy relics, but vessels. Storing fragments of stolen souls siphoned from those who entered its halls.
As the Gorath rebellion consumed their civilization and the machines turned upon their creators, the reliquary endured. The priests perished, the empire crumbled, and entire worlds were forgotten.
Yet the Hollow God remained.
The Hollow God isn’t dreaming of the universe.
The universe is dreaming of the Hollow God.