This is a prayer before Mass begins that invokes The Holy Spirit. It is always good to arrive at Mass a few minutes early so you can settle in and prepare yourself for the ultimate worship service – The Marriage Supper of The Lamb! The Book of Revelation points to the celebration of Christ and His Bride, the Church. The Mass we are invited to attend, is the extension of The Marriage Supper of the Lamb that is celebrated in Heaven. Who knew? Now, you do.