I am one of many brothers & sisters, Maybe the most important of all. I am made fun of because I'm different I do not deny I am the fattest of them all! Indeed I bring order to our master, without me their words would be in duress. You can see a part of me everywhere Near you or above, in the vast expanses. The other part is where many like to drown their sorrows & some de-stress My methods are unconventional though, through divide I bring peace! The world would be chaotic, If my existence you cease!
Who am I?
This is my first puzzle ever, so please excuse noviceness. Hence, there may be multiple right answers and hence try to explain your answer in the context of the riddle!