A piece of art is like a woman, you can appreciate her company, hate her, or both..., no need to 'understand' it.
True. One of my ex's had the most amazing abstract oil painting on his wall. When he saw me admiring it, he asked me what I thought of it, so I told him. When I asked him who the artist was, ...he just laughed. Turns out the "artist" who painted the piece, was his little brother, ...when he was 8. no joke! The painting had been done by a child bored stiff and angry from having to stay home from school, due to a bout of chicken pox.
A lot of people have had the same response to that painting over the years, including him.
So.... years later, he had it matted, framed, and hung in his living room. It truly was an exquisite piece.