Eternal Sovereign of the Divine Realm

Traditional Xuanhuan With a Protagonist Who Seems to Have Something Like a Martial Soul

I think the martial soul is a pair of wings made from different kinds of weapons. Later, each weapon turns into a dragon soul. I think there's a Great Sun Sword Technique in it. It starts with the protagonist being cast down to the lower realm, and at the end it's revealed that the world the protagonist lives in is actually a world inside his body.