Craft a mesmerizing visual representation of a cosmic phenomenon where a vibrant, swirling nebula finds itself inexorably drawn towards the inescapable gravitational pull of a massive black hole. The nebula's rich tapestry of colors and ethereal gases dance in a chaotic ballet of light and shadow as they spiral closer and closer to the event horizon of the black hole. The intense gravitational forces distort the very fabric of spacetime, creating mesmerizing visual distortions and warping the surrounding stars into elongated streaks of light. The black hole's event horizon, a dark abyss that devours all light and matter, looms ominously in the center of the scene, a silent and foreboding presence that spells the inevitable fate of the vibrant nebula. The clash of brilliant colors against the deep, dark void creates a stark and breathtaking contrast, symbolizing the eternal struggle between creation and destruction in the vast expanse of the cosmos.