A surreal and ethereal image for an audiobook cover. The central element is a single, luminous feather, impossibly suspended in a vast, starry expanse. The feather is intricately detailed, with a soft glow emanating from its quill, suggesting inner light. Around it, subtle, swirling nebulae in deep blues, purples, and hints of gold create a sense of cosmic depth and mystery. The overall mood is one of profound peace, introspection, and gentle transcendence. The composition is minimalist yet impactful, focusing on the feather as a symbol of lightness and freedom against a backdrop of infinite possibility. The aesthetic should be painterly, with a soft, diffused lighting that evokes a dreamlike quality. Square 1024x1024 format, no text or logos.