This paper investigates the act of existence (esse) of the Eucharist according to the theology of Saint Thomas Aquinas and presuming the Real Presence of Christ in the Eucharist as defined by the Ecumenical Council of Trent. The paper proceeds by presenting the question on the existence of Christ in the Disputed Question on the Union of the Incarnate Word and the tertia pars of the Summa Theologiae before presenting a short synthesis showing that Christ exists by the Divine esse (...) of the Second Person of the Trinity. Sacramentally, two objections to identifying this Divine esse as the existence of the Eucharist are considered. First, given that individuals generally each exist by a numerically distinct act of existence, the consecrated hosts and wine across the globe should all have distinct esse. Second, the Real Presence is a mode of sacramental presence which is different than natural modes of existence. (shrink)