What song?

A character with long, flowing hair is shown in a series of abstract, high-contrast scenes with vibrant neon colors and glowing effects, beginning with a distorted, multi-colored figure, then showing the character with their head bowed, followed by a close-up of their closed eye, then their eye opening to reveal a glowing blue orb, then a silhouette of the character with glowing limbs, and finally a distorted, colorful image of the character's face. The background is dark and abstract, with red glowing lines forming a tunnel-like pattern behind the character.