Srila Gurudeva Bhaktivedanta Narayana Gosvami Maharaja: There are two disciplic lines, one is pancaratriki guru-parampara, and one is bhagavat guru-parampara
In the beginning of Sri Caitanya Caritamrta, in the first chapter, Srila Krsnadasa Kaviraja Gosvami prays to be under the guidance of the Six Gosvamis. They are his gurus – siksa-gurus.
ei chaya guru siksa-guru ye amara
taì’-sabara pada-padme kori namaskara
[“These six are my instructing spiritual masters, and therefore I offer millions of respectful obeisances unto their lotus feet.” (Adi. 1.37)]
Srila Kaviraja Gosvami is not praying to the lotus feet of his diksa-guru. Why? He is doing pranama to his siksa-gurus, but who is his diksa-guru? Can you discover who he is? It will be very hard – very hard. Is it a very wonderful thing that he is not first doing pranama to his diksa-guru, as we do. He has broken away from all the rules and regulations by praying first to his siksa-guru. Why? He who has benefited us the most is actually guru.
There are two disciplic lines: one is pancaratriki guru-parampara, and one is bhagavat guru-parampara. We accept bhagavat guru-parampara, and pancaritriki [the formalities, the formal procedures, of initiation, as delineated in sastra] guru-parampara may also be included within it. Srila Prabhupada Bhaktisiddhanta Sarasvati Gosvami Thakura, Srila Bhaktivinoda Thakura, and Srila Rupa Gosvami have all accepted this bhagavat guru-parampara.
Sometimes the pancaritriki guru-parampara may be illegal and against bhakti. It may be, but the bhagavat guru-parampara, under the guidance of siksa-gurus like Srila Rupa Gosvami, Srila Sanatana Gosvami, Sri Svarupa Damodara, and Sri Raya Ramananda, is always authentic.
Some say that Srila Raghunatha dasa Gosvami was the diksa-guru of Krsna dasa Kaviraja Gosvami, and some say it was Srila Raghunatha Bhatta Gosvami. However, I consider that when he was in family life, Krsna dasa Kaviraja Gosvami and his elder brother were initiated into the krsna-mantra [gopal-mantra] by a family guru. He does not want to disclose the fact that he left that guru and came to the lotus feet of siksa-guru. Why did he leave? His eldest brother was somewhat against Nityananda Prabhu, and he was committing offenses to His lotus feet at a gathering of devotees at his home. Menaketana Ramadasa, a devotee of Nityananda prabhu, became very angry. He broke his flute and at once left the assembly. Kaviraja Gosvami’s family guru supported his elder brother. Though he favored Caitanya Mahaprabhu he was unfavorable to Nityananda Prabhu, and Krsna dasa Kaviraja thus rejected him. He went to Vrndavana, and there he accepted his six siksa-gurus, especially Srila Rupa Gosvami and Srila Raghunatha dasa Gosvami.
In the pancaritrika diksa-guru there may be something wrong [for example, he may not be a self-realized soul]. But in the bhagavat parampara there is never a chance for anything to be wrong. Krsna dasa Kaviraja Gosvami writes about his bhagavat guru-parampara gurus:
sri-rupa-raghunatha-pade yara asa
caitanya-caritamrta kahe krsnadasa
[“Praying at the lotus feet of Sri Rupa and Sri Raghunatha, always desiring their mercy, I, Krsnadasa, narrate Sri Caitanya-caritamrta, following in their footsteps.”]
yadyapi amara guru–caitanyera dasa
tathapi janiye ami tanhara prakasa
[“Although I know that my spiritual master is a servitor of Sri Caitanya, I know Him also as a plenary manifestation of the Lord.” (Adi 1.44)]
This is the explanation given by your Prabhupada. I am always following my siksa-guru, Srila Bhaktivedanta Swami Maharaja. I always keep his explanations with me. I am not different from him – we have the same opinion. Those who do not have very much intelligence cannot understand this fact. Thus, they cannot understand the deep meanings of Srila Swami Maharaja’s commentaries.
source : lecture in Salt Spring Island, Canada, April 21, 2001 – Siksa Guru