For everything that is loved becomes pleasing to the lover, since love is a kind of union or connaturalness of lover and beloved.
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic union pleasing
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17897/pg17897-images.html

Context

“And so hope, inasmuch as it implies a present appraising of a future good, causes pleasure; whereas, inasmuch as it implies absence of that good, it causes affliction. Reply Obj. 3: Love and concupiscence also cause pleasure. For everything that is loved becomes pleasing to the lover, since love is a kind of union or connaturalness of lover and beloved. In like manner every object of desire is pleasing to the one that desires, since desire is chiefly a craving for pleasure. However hope, as implying a certainty of the real presence of the pleasing good, that is not implied either by love or by concupiscence, is reckoned in preference to them as causing pleasure;” source