What makes me ' I ' (myself)? My body is me. Now what makes body? two hands, two legs, one head etcetera. Lets go deep, blood, different kind of tissue or cell. If you go farther you have Liquid, Heat, Air, dust etcetera.
Now there are lots of people who live without hands or legs. So in practical I am not hand or leg. People also alive without ear, eye. So I am not those also. If you cut head I will obviously die so I am a head. You may think about heart, well now-a-days it can be replaced.
Let think farther more, If you stop air supply do I live? Obviously no. So I am air too. Without breathing I can not live. Now I can tell at least I am made out of a head and air
Air is everywhere you know!! So I am …..