Prabhupāda: You have seen sometimes the pigeons fighting. But a pigeon and crow does not fight. A pigeon and pigeon fights. So this is also another indirect way of love. You'll see the pigeons, they will fight and again sit down in the assembly of the pigeons, not that the pigeon is going to the assembly of crows. Go on.
Pradyumna: "The rasas are exchanged between members of the same species. But as far as the spirit souls are concerned, they are one qualitatively with the Supreme Lord. Therefore, the rasas were originally exchanged between the spiritual living being and the spiritual whole, the Supreme Personality of Godhead. The spiritual exchange, or rasa, is fully exhibited in spiritual existence between living beings and the Supreme Lord. The Supreme Personality of Godhead is therefore described in the śruti-mantras, Vedic hymns, as "the fountainhead of all rasas."
Prabhupāda: Raso vai saḥ.