Manvantara

Manvantara is a very big and long time period where lots and lots of things happen. It's like a really, really long game that goes on for billions and billions of years. Imagine playing with Legos for a whole day, okay? Now, a manvantara is like playing with Legos for trillions of days!

During one manvantara, many things happen, like new planets are formed, creatures come and go, and new civilizations rise and fall. It’s like a giant cycle that keeps going and going. Each manvantara has its own set of gods, who have their own job to take care of the universe.

At the end of a manvantara, everything goes to sleep, kind of like how you go to sleep at night. This is called pralaya. And then, a new manvantara starts all over again with new gods and new adventures!

So, in short, a manvantara is a really, really long time period where lots of things happen, and it's like a giant cycle that keeps repeating itself.