These two Latin words mean literally “to be” and “to exist”.
Swedenborg translators sometimes leave them in Latin, but they have also been translated as “being” and “manifestation”.
We can sort of think of esse and existere separately, but they are always conjoined. If there is something real, you have to be able to attach qualities to it, and if you can find qualities there has to be something to hold them. (This is true in fiction and imagination as well if you think about it.) When thinking about the Lord, His esse or being is the infinite Divine love and His existere or manifestation is the infinite Divine wisdom. Both are reflected throughout creation.
(Referencat: Apocalypse Explained 795; Arcana Coelestia 1432, 3299, 5041, 5272 [2], 6880, 9809; Divine Love and Wisdom 14-17-18-22, 55; The Apocalypse Explained 1069 [2], 1111 [2]; True Christian Religion 18, 21)
