Write the things which you have seen, and the things which are, and the things which will take place after this. The mystery of the seven stars which you saw in My right hand, and the seven golden lampstands: The seven stars are the angels of the seven churches, and the seven lampstands which you saw are the seven churches. Revelation 1:19-20
John is instructed to write that which he has seen. John is physically seeing this vision with his eyes and hearing with his ears. The things John is to write considering the things which are, are chapters 2 and 3 which concern the seven churches and points to seven spiritual conditions that have existed through out the church age. The number seven represent fullness or completion.
The things which will take place after this refers to chapters 4 and beyond which points to everything that will take place when the bride is gone. Once the bride has been removed the wrath and judgment of God will be poured out upon the earth.
The Lord explains the mystery concerning the seven stars and the seven lamp stands. Angels are ministering spirits that assist us upon the earth and come alongside us. An angel is placed over each church. But the Angels work in concert with us. Our prayers strengthen and activate the angels of heaven. Churches that place a priority and emphasis on corporate prayer and intercession will see the power of God present.
The seven lamp stands are the seven churches described in chapters 2 and 3. A lamp stand gives light and represent the eternal light of God's glory. When a church is walking in obedience to the leading of the Holy Spirit the light and glory of God's presence will shine brightly and be present. But when a church walks in disobedience the warning from the Lord stands. That if they fail to repent their lamp stand will be removed. But God always calls His people to repent because repentance is the key in seeing God's plans and purposes fulfilled in our midst.