This means that that God has a different task for different people. Different People have different tasks. The reason for that is that it touches people in different ways.
Tasks are duties that have to be done.
God gives each of us a gift that he uses through us to perform these tasks. Gifts are given to different people, some of them are the gift of tongues, Prophecy, Preaching, Evangelism, Dream defining, Having dreams, missionary work, encouragement, healing and more. Every chosen one has at least 1 of these gifts. Some have more and some have less. Some may go through life never using, or figuring out their gift.