The faith(red) provides you with a moral code(black), some rules to guide your behavior. Sometimes it is easy to follow (thin black lines), sometimes it requires you to do big sacrifices(black stains). In rare cases the sacrifices are so huge, they take you out of the picture(the black stain in the upper left corner). But your sacrifices helps others followers to solidify their faith and to continue the journey. Every faith has an underlining of intolerance(yellow background) to other faiths, this is in human nature to think that your believes are the right ones.