St. Alphonsus Liguori
“St. Teresa says, that all are not allowed to speak to their king; the most that can be hoped for is to communicate with him through a third person. To converse with thee, O King of Glory, no third person is needed; Thou art always ready in the Sacrament of the Altar to give audience to all. All who desire Thee always find Thee there, and converse with Thee face to face. And even if any one at length succeeds in speaking with a king, how many difficulties has he had to overcome before he can do so! Kings grant audiences only a few times in the year; but Thou, in this Sacrament, grantest audience to all night and day, and whenever we please.”
Source: St. Alphonsus Liguori, Visits to the Most Holy Sacrament