Christ is the head. He is the the source. He is the one who who oversees and and is in charge. He is the the headwaters and everything flows from him as the source. And as the head, as the source he distributes ministers to the church.
The idea in of Paul in this letter to the church at at Ephesus is that Christ as the source is sending down the river apostles and prophets and evangelists and shepherd teachers into the little tributaries that are the church so that the church can all become deacons. Not in the ecclesial form where we acknowledge well this person is a deacon, that's deacon Jones, and that's deacon Smith and that's... Not in that sense but in the sense that we are all living as practical deacons within the church practical servants in the church working together for the common good of the church. So the head of the source has sent out by the spirit, the apostles and prophets and evangelists and shepherd teachers into the little villages on the river so that the villages on the river can be full of deacons, servants who are built up together.
To equip his people for works of service so that the body of Christ may be built up until we all reach unity in the faith and in the knowledge of the son of God and become mature. What makes us mature? Listening to the word, to the apostles, to the prophets, to the evangelists, and pastors teacher taking what God has imparted into them and and receiving it and then becoming workers and servants one to another in love and faith and baptism so that the body can become mature attaining to the whole measure of the fullness of Christ.