Conversation so far:
What is ontology?
Ontology is the philosophical study of being.
What was Slavoj Žižek's ideology?
Slavoj Žižek believed building upon Althusser, ideology is thoroughly unconscious and functions as a series of justifications and spontaneous socio-symbolic rituals.

Question: What rituals did he think it reflected?
Self-contained rewrite: What rituals did Slavoj Žižek think ideology reflected?