Envision a mesmerizing scene where translucent cubes float gracefully in an endless cosmic backdrop. Each cube pulses with a soft, radiant light, casting delicate hues of blue, pink, and gold across an expansive void. Wisps of ethereal mist swirl around them, creating an enchanting atmosphere. As they slowly drift and interact, the cubes emit a gentle glow, illuminating the darkness with a serene luminosity that captivates the viewer.