Three-Way Perfection
For while constructing an Inner World anchored a practitioner's comprehension of Dao principles within a tangible domain, nurturing one's soul space molded their essence into an intangible, conceptual form. An intensely abstract existence shaped by sheer force of will rather than passive absorption of universal laws.
And Cain's indomitable spirit, that of an ambitious cultivator eagerly awaiting the day he'd surpass all immortals and gods across reality's infinite planes, manifested as an ever-glowing wellspring of power transcending all dimensional barriers.
His soul sun world blazed with such intensity that not a single being in existence could break its luminous cycles - an invincible anchor reinforcing his already unshakable Dao Heart.
No force could overcome Cain's will nor halt his ceaseless advancement through the coming ages.