What keeps us apart

Click on this link, I want to share the image (and I was not able to cut-and-paste it in here) This is the link of the website of an NPR (National Public Radio) program called Speaking of Faith. Yes, the site is interesting, but what I was particularly reflecting on was the image in this link. You will see two individuals at opposite sides of a table, reaching out to each other but - alas- so far apart still. And each one is chained to something. I wondered what these chains are, that keep us apart from each other. Assumptions? Experiences converted into assumptions and beliefs? http://speakingoffaith.publicradio.org/programs/doubt/index.shtml