We have each been given particular gifts that enable the body of Christ to function as a whole. We must be connected to the mind of Jesus in order to function properly. We can't all do the same thing. If we all had the same gifts, the body would die. My strongest gift right now is writing, which is a part of the teaching gift. I use my fingers to write and, with technology, my voice. If I don't connect to the mind, my function is completely dead; the words are dead, the outcome is dead. The church is a complete body and we need each part connecting to the mind. Many of us have parts of our bodies that do not work as they should. If that individual part began to work again after being disconnected for a long time, it would need to practice and exercise to work properly. For that reason, we should exercise our gifts and stay connected to the mind of Jesus, you don't want to get rusty or have atrophy set in.
For more information about this, study 1 Corinthians 12.
For just as the body is one and has many members, and all the members of the body, though many, are one body, so it is with Christ. 1 Corinthians 12:12