SB 5.8.20
api svid akrta-sukrtam agatya mam sukhayisyati harina-raja-kumaro vividha-rucira-darsaniya-nija-mrga-daraka-vinodair asantosam svanam apanudan.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
That deer is exactly like a prince. When will it return? When will it again display its personal activities, which are so pleasing? When will it again pacify a wounded heart like mine? I certainly must have no pious assets, otherwise the deer would have returned by now.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Out of strong affection, the King accepted the small deer as if it were a prince. This is called moha. Due to his anxiety over the deer’s absence, the King addressed the animal as though it were his son. Out of affection, anyone can be addressed as anything.