Congratulations!
Clue #1: introspection
< the song starts with "Look inside your head".
Clue #2:
< this is a character from
Buffy The Vampire Slayer, Rupert "Ripper"
Giles, but when he was younger. He recognized he used to make people believe he was a founding member of Pink Floyd. The original bassist on Stray's song is Gary Giles.
Clue #3: A famous female American pop star has a song by the same name
< Mariah Carey also released one "All In Your Mind"
Clue #4:
< a still from the video game
Stray.
Clue#5:
< segregation ("Segregation, preservation")
Clue #6:
I would have included extracts from the book, but it is most likely censored content.
<
Ka(r)ma Sutra is mentioned.
Clue #7:
Cogito ergo sum
< Descartes's solipsism summed up in three words: whatever happens in front of you is "all in your mind" is one quick way to vulgarize it.
Clue #8: this song is a cover
< it appeared as a B-side to "Holy Smoke" (1990).
Your turn,
@Jmaster