The Collect for the 20th Ordinary Sunday, already in the 8th century Gelasian Sacramentary, is also in the 1962 Missale Romanum for the 5th Sunday after Pentecost.
Deus, qui diligentibus te bona invisibilia praeparasti, infunde cordibus nostris tui amoris affectum, ut, te in omnibus et super omnia diligentes, promissiones tuas, quae omne desiderium superant, consequamur.
Immediately you noticed the different words for love and longing: diligo, amor, affectus and the related cor, desiderium, promissio. Each has its own subtle overtones which you can investigate. After all, when you love and believe you want to know more. Faith seeks understanding and love draws us to Love Himself. St Augustine (d430) worked from the ancient understanding of gravity as a force within a thing compelling it to seek its resting place. He describes love as his “weight”, urging his heart towards God. “Amor meus, pondus meum… my love is my mass” (conf 13, 9, 10).
