Equillibrium with dualities of the world..!

Every wise human being must remain indifferent and unshaken with the chain of events and circumstances.. as these are just like bubles in the stagnant water..!
If we feel peace and pleasure from whatever we have then..the same may cause frequent displeasure and sadness because of its transient nature..!
Hence we should develop an equllibrium in between such dualities..in order to keep the life easy and well going..!