"What is tea? What is water? Who am I?"
Translation:चाय क्या है? पानी क्या है? मैं कौन हूँ?
The answer to all of those questions is "mostly molecules made up of hydrogen and oxygen". The rest of you is mostly carbon and nitrogen. These four atoms are the most abundant in the universe apart from helium (which is a noble gas and can only make you sound funny). Does that make you feel special?
I paraphrased Neil Degrasse Tyson. Look him up.