Wonder about expressionist painting? How abstract expressionist artists paint?

I painted realistic landscapes for decades. Over the last few years I've been searching for something deeper. I've been using my paintings to explore spiritual connection and deeper meaning of life. Symbols in the landscape parallel dream symbols. I've begun to feel colors, lines, and textures in my body ~ to paint larger life-size canvases ~ which have a healing impact on life issues I've struggled against for decades.