What you see here is the CPM (Continuous Passive Motion) machine that I've been hooked to several hours per day since my knee surgery in mid-December. When I was too tired to exercise, this machine did it for me. And yes, that is my leg in the machine. It moved back and forth stretching my leg to increase my knee's range of motion.
With every movement the muscles and ligaments pulled tight, then tighter again. It hurt, but when is growth without its pain?
In the Bible, God admonishes us to grow in faithfulness (2 Corinth 9:10), in Christ (Eph 4:15), in love (1 Thes 3:2), in perfection (Heb 6:1), in his word (1 Peter 2:2), and in grace and mercy (2 Peter 3:18). In other words, a stagnant life is unpleasing to God.
I believe we can apply this to the gifts he gives us as well: music, writing, and the work of our hands. If we sit and do nothing, nothing will be accomplished. If we don't try—and sometime fail—we'll never learn how do to do things better.
Your turn: When did God last stretch you and how did you grow from it?