The Dunwich Horror and Others

The universe Lovecraft created feels vast and interconnected. I'm curious whether he envisioned a detailed mythos or let ideas evolve organically.

The settings feel so rooted in real places but are filled with unsettling, otherworldly horrors. Did this contrast add to the sense of dread for others?

These themes permeate the stories and seem central to Lovecraft's worldview. I'm wondering whether personal fears or cultural influences shaped this focus.