How difficult is it to understand abstract expressionism

I paint with a blank thought, just like a Canvas is blank when we paint my thought also empty just before I start my work, although any form of Art is an emotion and we express it with Words, Colors, Dance etc. unlike the Dance, where Words  can be read and understand and Dance we can see and feel with music with instant like or dislike…But somehow when it’s come to an Art people have a mix understanding about Abstract art, Modern or Contemporary Art..although they do try to understand about art but not finding them convinced most of the time, I just feel…Do we really need a language to make them like an Art work, how important is “Explanation” about art work and why do we need a language to explain where I have chosen a no language barrier form of expression “Color”