“And so that which till then was visible of our Redeemer was changed into a sacramental…”

And so that which till then was visible of our Redeemer was changed into a sacramental presence, and that faith might be more excellent and stronger, sight gave way to doctrine.

Leo I · The Letters and Sermons · NPNF2 XII, Sermon LXXIV

Quod Redemptoris nostri conspicuum fuit in sacramenta transivit. Preached on the Ascension, and the sentence Western sacramental theology has used ever since to say what was left behind when the body went: not an absence but a change of mode. Leo has just said that Christ ended his bodily presence on the fortieth day.