In terms of Advaita Vedanta,
The Universe, we often refer to, is simply termed as "Jagad".
There are three types of Realities as per Advaita Vedanta:
- Paramaatmika Satyam (Absolute Reality) - Brahman
- Vyavahaarika Satyam (Empirical Reality) - Universe / Jagad
- Pratibhaasika Satyam (Subjective Reality) - that which is untrue
The below video helps to understand just the Empirical Reality, which is relatively short-lived compared to Absolute Reality. However, notice, how mystifying it is.. even this Empirical Reality. What can we say about the Absolute reality then? One word : Absolutely Incomprehensible to the Human mind!