They love dancing well that dance among thorns.

Someone who keeps dancing despite the thorns must love it deeply. The discomfort makes their enthusiasm plain.

More broadly, a willingness to put up with difficulty for the sake of an activity can show how much a person values it.

Use the proverb when someone continues a pastime or cherished pursuit despite discomfort or obstacles. It can express admiration for their dedication or gently point out just how determined they are to carry on.