The haunting specters…

"And I saw when the Lamb opened one of the seals, and I heard, as it were the noise of thunder, one of the four saying, "Come and see". And I saw white"

Drive the smiling lambs to the red bull...

"And when he had opened the second seal, I heard "Come and see". And there was red: and power was given to him that sat thereon to take peace and sense"

Making them wait until the black raven arrives...

"And when he had opened the third seal, I heard third say, "Come and see". And I beheld and saw yellow, and then the midst arises"

And will sing the final lullaby at them...

"And when he had opened the fourth seal, I heard a voice "Come and see". And I looked, and behold black: and then darkness covered us.