There are multiple hidden references to aspects of spirituality, for example astral projection, throughout the entire video performance.

She tried to explicate hidden references and connections.

Each episode contains hidden references to one of the twelve signs of the Zodiac.

It might also be a hidden reference to Tribhuvana, the great Hindu Triad.

The pub features many hidden references to the book, namely house elves and ghosts that roam the rafters.

Mr. Penn said he doesn't see a hidden reference to immigrants, Arabs or any distinct ethnic group in his film.

Many other passages supposed to contain hidden references to one or another candidate have been identified.

Some of the theming includes hidden references to real places and names.

The novel becomes a self-congratulatory game of gloating at hidden references.

The album's cover art, designed to look like a concert ticket, features several hidden references: