Do you think the abstract Christian art was felt to be more in keeping with the biblical ban on graven images?
BTW, I'm not too convinced by the last 2 :-)
I don't see the Frank Stella, the last image, as very spiritual; but he was explicitly inspired by those early Medieval pieces like the ones I posted, so that's why I included him. I do see, and feel, Kandinsky as very spiritual. His work just soars and raises my spirits (mood). But we dealt with him before.