When Sri Caitanya Mahaprabhu took sannyasa, the advaita-vadis criticised Him for dancing and singing in various places.
Mahaprabhu received the gopala-mantra from his guru, this mantra gives detachment from sense gratification (he is mantra-raja, the king of mantras).
Srimati Radhika taught the kama-gayatri mantra to Visvanatha Cakravartipada. To learn more about this mantra, read Mantrartha Dipika.
Sriman Mahaprabhu instructs Gadadhara Pandita not to speak the mantra aloud and to receive it only from his guru.
The maha-mantra was born from the heart of Srimati Radhika!
If you chant the gopala-mantra, little by little the material desires will come off from your heart, but if you chant the mahamantra, you will get krishna-prema!
There are three names in the gopala mantra: Krsna, Govinda and Gopijana Vallabha, but in the mahamantra we chant Yugala-nama, the names of the Divine Couple.
At the end of the diksa mantras there is the sampradam-kanaka, when the individual offers himself completely to the deity who presides over the mantra by saying: namaha, svaha and pracchodayat.
The four rules for attaining mantra siddhi.
Gayatri mantras protect us from maya and free us from our anarthas (sins); but the mahamantra will give us krsna-prema and sambhanda-jnana, the knowledge of relationship with God.
The mahamantra manifested from the heart of Srimati Radhika – Kali-Saṇṭāraṇa Upaniṣad, Vyasadeva.
The meaning of the vocative ‘Hare’ in the maha-mantra.
The two symptoms manifested in those who have attained prema.