Knowing 'Who am I', that is self-realization.
Do you know who really is you? In fact you are Chandulal or your name is Chandulal?
Your name is your identity! But did your friends not call you in the school by calling them "Chandulal" or "Chandu"? Your parents call you kindly and wife too and wife too. If you want, the name can also be changed by going to court. Do you change by changing the name? Do you lose your existence by changing your name? no at all!
So who are you really?
Let's look at it in another way. You say, "My head", "My body", "My legs", "My eyes", "My ears" You do not say that "I am the head", "I am the body", etc. This means that the entire body consists of 'mine'. Similarly you say, "My watch", "My glasses", "My house", "My car", you do not say, "I am the watch", "I am the glasses", etc. That is to say that all your things come under 'Myapan'. Who is the owner of all these things that come under 'Merit'? Whatever comes under 'Mypan', keep all those things aside ...