Hanging an Abstract Painting

I have many friends who have hung abstract pictures on their walls and found themselves gazing at them endlessly, and then exclaiming, 'I don't know what there is in that painting, but I can't take my eyes off it'.  This kind of bewilderment is salutary. It does us good not to be able to explain, either to ourselves or to others, what we enjoy or love; it expands our capacity for experience.