can anyone explain who am i ?

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GO THROUGH THIS LOGIC : logic 1 : When i say i will go in my car,now here "I" and "My" are 2 seperate things."I" is my personal self ,say bksagar,My is referred to car. logic 2 : I wore my red jacket,again here "i" is myself & "red jacket" is something i posses,but it is not me,it belongs to me,so from this logic I and jacket are 2 different things. Now,applying same logic as above,go through this : I say : "I" have pain in "My" Leg,Hand,Head ,Eye,Nose Brain,Body.If you see carefully again there are 2 things here,on one side its "I" and on other there is My : leg,hand,body etc.so like above logic it proves that here "I" is different from My leg,eye or this physical body,means I and physical Body are 2 different things,so if i m not this physical body ,than who am i ? Another example : consider a 10 floor building having 1 house on each floor.There are no windows or any opening in first 9 floors to see the outside world.Now a person goes on 10th floor which has 2 windows,from where he can see outside world.Here the entire building & person on 10th floor, watching outside world from 2 windows, are 2 different things. Now when i as a human say ,i watch this entire world from 2 eyes,in other words,my physical body is like 10 floor building,with my 2 eyes as 2 windows in the 10 floor building.so if in that 10 floor building ,if it is that person is the one who is watching entire world from 2 windows ,than from this physical body which is like 10 floor building ,who is watching the entire world from 2 eyes which are like 2 windows of this physical human building.Any answers?