Everyone sees something different in abstract art - in me it invokes strong feelings but i can rarely put these into words. Looking at some pieces feels like a subway train at full speed in my head, others are calming, some heartbreaking while other bring up smells and memories from childhood. Interestingly a lot of abstract art does nothing for me personally, it feels pretentious and dead.
How can one learn to produce abstract art? Jackson Pollock was painting with feeling, he "felt" what colours, what blotches and splatters, where and how heavy, what the dimensions of the canvas...
Personally, I very much enjoy seeing abstract art and really really want to be able to see and feel in this way and express it but so far my attempts have not been very successful. Most of my drawings, paintings and photos were a fun process but when these "pieces" were finished they just felt too forced and fake. Sometimes immediately, other times after a few years, most are in a landfill now. Personally, I find painting is easier then abstract photography but I will keep trying.
Anyway, a few years ago (2011) one of our very own SE Photography users, one @jaxxon, was occasionally participating in and winning our featured photo contests with some breathtaking abstract macros. I believe that to produce his photos he was looking for rusty cars, textures, colours and compositions at different often macro scales. To this day his "abstract" photos are some of my personal favourite photographic abstracts.
I was so inspired by his work that I made it my mission to save up for a good fast macro lens and give it a try. I finally have one but I am still shooting unable to see in this way. It's a lot of to keep trying though.
jaxxon's flickr page: https://www.flickr.com/photos/jaxxon/with/9597408136/