This shirt is taken from many of the bible verses in the bible that warns us to guard our hearts.

Proverbs 4:23 (New International Version)
23 Above all else, guard your heart,
for it is the wellspring of life.

This can mean anything and everything in the world that is considered evil and harmful to our soul. It is our job to keep our body as a holy temple.

Tultex Unisex Tee with Tear-Away Tag - 4.5 oz. 100% ring spun cotton 30/1's fine knit jersey, tubular construction, ribbed crew taped neck and shoulders with double needle sleeves and bottom hem. Tear-Away tag. Reactive dyed.