Joe_Offer, St. Patrick's breastplate IS profound and I elieve it is also a paraphrase of the Scripture about Spiritual Armour. Isn't that in Ephesians? I'm nor near a Bile so I can't look. Sorry. I think it's Ephesians 6, verses 14 through.. I don't know. I recall that verse mentions a breastplate and girding yourself. Maybe it's verses 11 through 14.. I'm just not with it today. apologies