quality:corruption, quality:correction, linguistic:paraphrasing
Cosmicism

Now all my tales are based on the fundamental premise that common human laws and interests and emotions have no validity or significance in the vast cosmos-at-large. To me there is nothing but puerility in a tale in which the human form—and the local human passions and conditions and standards—are depicted as native to other worlds or other universes. To achieve the essence of real externality, whether of time or space or dimension, one must forget that such things as organic life, good and evil, love and hate, and all such local attributes of a negligible and temporary race called mankind, have any existence at all. Only the human scenes and characters must have human qualities. These must be handled with unsparing realism, (not catch-penny romanticism) but when we cross the line to the boundless and hideous unknown—the shadow-haunted Outside —we must remember to leave our humanity and terrestrialism at the threshold.

— H. P. Lovecraft, in note to the editor of Weird Tales, on resubmission of "The Call of Cthulhu"

The central theme of Lovecraft's corpus is cosmicism. Cosmicism is a literary philosophy that argues that humanity is an insignificant force in the universe. Despite appearing pessimistic, Lovecraft thought of himself as being a cosmic indifferentist, which is expressed in his fiction. In it, human beings are often subject to powerful beings and other cosmic forces, but these forces are not so much malevolent as they are indifferent toward humanity. He believed in a meaningless, mechanical, and uncaring universe that human beings could never fully understand. There is no allowance for beliefs that could not be supported scientifically. Lovecraft first articulated this philosophy in 1921, but he did not fully incorporate it into his fiction until five years later. " Dagon ", "Beyond the Wall of Sleep", and " The Temple " contain early depictions of this concept, but the majority of his early tales do not analyze the concept. "Nyarlathotep" interprets the collapse of human civilization as being a corollary to the collapse of the universe. "The Call of Cthulhu" represents an intensification of this theme. In it, Lovecraft introduces the idea of alien influences on humanity, which came to dominate all subsequent works. In these works, Lovecraft expresses cosmicism through the usage of confirmation rather than revelation. Lovecraftian protagonists do not learn that they are insignificant. Instead, they already know it and have it confirmed to them through an event.