When a man and a woman dance together, the man must lead, and the woman must follow. He leads with subtle weight changes. He leads with arm movements. He leads with eye contact. He doesn’t push or pull his partner. Rather, he helps the woman to enjoy her dancing. When done correctly, such dancing is beauty in motion.
The same concept comes in Ephesians 5:22-33, the quintessential passage for marriage. It describes the husband’s role. It describes the wife’s role. The husband loves and leads. The wife submits and helps. In so doing, they picture the relationship that Christ has with His church. When done correctly, it is beauty in motion.