turning on your private prayer and worship at home, that manifests itself on Sunday. Study the scriptures that the song was based on, and minister the song. Most people just stand and sing words, or some canned adlibs that they heard on the recording. But you have to have freedom to follow the Spirit in your service (and make sure when you step out, it is indeed the Holy Spirit). When it is truly inspired by the Spirit, there will be fruit. And when you have fruit, even if you went off script, you'll know it was His will and not your own.