We saw that the opening of the sixth seal in chapter 6 refers to the overthrow of the old Pagan religions of pagan Rome. The seventh seal is not opened until chapter 8, verse 1.
All the symbolism of chapter 7 is therefore under the sixth seal. At the end of the 3rd century Paganism was dominant, persecuting, seeking to “abolish the Christian name.” But by the end of the 4th century the civilized world had become Christian.
Four angels (v.1) standing on the four ‘corners’ of the earth holding back ‘four winds’ that it ‘should not blow on the earth’. These winds symbolise four destructive agencies were restrained by the Holy Spirit until the Holy Spirit’s work of the spreading the gospel was accomplished, by taking advantage of this opportunity.