Caitanya Mahaprabhu is very practical, that "I want to give krsna-prema. One should be ecstatic, emotional in krsna-prema. One shall cry for Krsna." And He taught everyone by His practical example how He was mad after Krsna. Govinda-virahena me. Sunyayitam jagat sarvam govinda-virahena me. This is krsna-prema: without Krsna, one should see everything vacant. This is
But that is not possible for ordinary human being. It might be possible for Caitanya Mahaprabhu and few devotees.
>>> Ref. VedaBase => Srimad-Bhagavatam 3.25.30 — Bombay, November 30, 1974