It was perfectly explained for Christianity, even deeper than most are able to realize. Although most people don't even try to realize what I'm talking about.
I am far from this whole religious theme, and even so I am able to realize that the dialogue about love sounded like complete nonsense and if someone suddenly saw the deepest meaning here, then I can only sympathize with him. I am ready to collect the cons, but this is my opinion and I will stick to it.
@mda_heh_byvaet: The priest mentioned enlightenment in passing for a reason: here, the interpretation of love is more like a Zen understanding of it, when the maximum possible love means renunciation of all feelings, renunciation of any attachments, because they darken the heart with illusions and lead to disappointment. Hence the "difference of positions", "love is death" and so on. in the dialog) It is clear that this sounds strained from the mouth of a Catholic priest, but the creators interestingly weave Western and eastern motifs.
@okaycurly: Very good straight, fell asleep in the middle of a fight for his head, caught a trip, listened to a cynical drunk and understood life. One express becoming and a pill from love, please.
Askeladd was right, having lost a dear person, the prince changed.