Plato has said it brilliantly. He says ‘there are two eternal things in this universe– one ‘Is’ and is never becoming and the other ‘is not’ but is ever becoming’. That ‘becoming’ is what is known as ‘jagat‘. That movement – it is physical as well as psychological. For example, ‘I don’t have something, I must get it’ – a psychological movement. Physical – ‘I am in this location, I must move to that location’. The world is rotating all the time and also revolving around the geocentric system. So, that constant movement is called ‘jagat‘.