stardust.

Small fragments of dustlike material found in space; specifically, a type of cosmic dust that formed from cooling gases ejected from presolar stars, which was then incorporated into the cloud from which the Solar System condensed.

We are all made of stardust.

A distant cluster of stars resembling a cloud of dust, especially if the individual stars of which cannot be resolved with a telescope.

Small fragments in the Earth's atmosphere or on its surface originating from meteorites; meteor dust.

Something imaginary or lacking substance.

An imaginary magic dust or powder that, when in one's eyes, supposedly causes one to view a person or thing favourably, even though this might not actually be warranted.

My sister’s eyes were full of stardust – she’d spend hours lazily planning her future life when she would make her big break in the movies.

An imaginary magic dust or powder supposedly able to give one charisma or other positive qualities; hence, charisma or glamour, especially that possessed by a celebrity.