What is Purpose?
The reason for which something exists or its done, used, made can be referred to as purpose. Purpose also is an intended or desired result; an aim, goal, determination, resoluteness.

There are two groups of people who are overburdened in this world; those who are carrying nothing and those who are carrying what they are not suppose to carry. Life becomes a burden if lived outside purpose. Doing the wrong thing for the right reason and doing the right thing for the wrong reason all ends in futility. Life becomes productive when you are doing the right thing the right way, in the right time, in the right place, for the right reason (the what..., the how..., the where..., and the why principle of life), and doing enough of this all your life.

Read more on the link below
http://www.onosworld.com/2016/07/must-read-10-principles-of-purpose.html