In the year that King Uzziah died, Isaiah was permitted in vision to look into the holy place, and into the holy of holies in the heavenly sanctuary. The curtains of the innermost sanctuary were drawn aside, and a throne high and lifted up, towering as it were to the very heavens, was revealed to his gaze. An indescribable glory emanated from a personage on the throne, and His train filled the temple, as His glory will finally fill the earth. Cherubim were on either side of the mercy seat, ... and they glowed with the glory that enshrouded them from the presence of God.... These holy beings sang forth the praise and glory of God with lips unpolluted with sin. (RC 338.2) MC VC