The mastery over self is the ability to reboot. 
It is an act to be human when the vibe of indifference exists.
Steps to be followed:

-	Think of the innocence smile, someone beyond your family
-	Think of the reason, last time you had soulful smile
-	Think of that person whom you made smile
-	Think of the persons whose smile you could preserve
-	Think of an idea, sure to trigger smile

Now close your eyes
Remember the last photograph, you got a nice smile

If abled, rebooting completed 
Now you are certified

If it doesn’t make change
Repeat the process
Reboot again