A callus is a hardening of skin and a callous is to be made hard. Often times, we equate being made hard with negative connotations such as being heartless. What if we rethink what callous and callus means? Calluses can be virtuous and beneficial in growing. Calluses form when we consistently and fervently practice something so that we can endure pain that can come from a good thing. Take playing the guitar for instance. When you first start playing, it hurts. Your fingers burn and tear. The annoying pain alone makes you want to quit, on top of the frustration that comes with first learning how to strum basic chords.