it is about life. It is full of ups and downs ,laughters and tears,one doesn't get what one want, one gets what one doesn't want, wrath , greed, schemes,all lead to the end of life, and each following one another into this life pattern. This is not exact translation of the song , just a gist of it ,
Namo Buddhaya Namo Dhammaya Namo Sangkhaya Sartoo Sartoo Sartoo very good luck for your family and the world Buddha Dhamma is the Universal truth & Buddhism isn't religion it's the way of life and the way of true life freedom