A celestial sentinel is a towering, angelic figure that guards the gates of a celestial city. The sentinel's body is composed of ethereal light, and its wings span the width of the sky. The player, a diminutive mortal, stands before the sentinel, their weapon held at the ready. The celestial sentinel's voice, like thunder rolling across the heavens, challenges the player to prove their worth. Its eyes, pools of radiant light, pierce through the player's defenses, revealing their deepest fears. The battle is not just a physical confrontation but a test of the player's spirit and resolve