Art is where artist or someone express their emotion or feelings. Art is a passion. To understand an artwork you have to go beyond the meaning of that art. Everything is an art your thought, dreams, worries, issues, joy, all around you is an art.
Here is an example of an art for me. It shows different kind of aspects like love-sex, marriage, sadness, violence, envy, terror, pleasure or pain. We can have different opinions in an art but the true meaning behind it may come from the artist who made it.