Prabhupāda: Mercury. Mercury. Hydrox... What is called? Hydroid?
Devotee: Quicksilver?
Prabhupāda: No. Another name is hydrogeroid. That is the chemical name of mercury. You know it. Hydrogeroid? Yes. Unguentum hydrogeroid. Yes. That is another name of the mercury. Hydrogeroid. So in Sanskrit it is called rasa. Rasāyana. From mercury, rasa, the chemistry is called rasāyana-śāstra. Actually, rasāyana-śāstra, chemical composition, begins from mercury and sulphur. That is the beginning of chemical composition. So rasa-vidhānena, by chemical interaction of sulphur and mercury, if you can add tin and copper, then it becomes gold. You can manufacture gold, provided you know the process, how to mix up copper, tin and mercury. With via media of sulphuric acid. Sulphuric acid is the mother of chemicals. Without sulphur, you cannot make any chemical composition. Therefore all chemical composition are called sulphate, sulphite, like that. So Sanātana Gosvāmī gives this idea of chemical composition. It appears that he knew how to work with chemicals.
- yathā kañcanatāṁ yāti
- kaṁsa-rasa-vidhānataḥ
- tathā dīkṣā-vidhānena
- dvijatvaṁ jāyate nṛṇām
So we are trying to follow Sanātana Gosvāmī. By dīkṣā-vidhānena, by initiating persons any, from anywhere. It does not matter. Because in this age, Kali-yuga, the dīkṣā-vidhāna is performed according, according to Pāñcarātrika-vidhi. Not Vaidika-vidhi. Vaidika-vidhi is very strict. Unless one is bona fide son of a dvija, the initiation was not given. To the śūdras, there was no initiation. A brāhmaṇa kṣatriya, vaiśya. So these are the Vedic process. So in the Kali-yuga, because it is to be understood that everyone is a śūdra, therefore Vaidika-vidhāna cannot be applied. Vaidika-vidhāna requires that one must be born by a brāhmaṇa, kṣatriya. Then he's eligible for being initiated. But in the Kali-yuga, that is not possible. Therefore the Pāñcarātriki-vidhi is accepted. Nārada-Pañcarātra. Tathā dīkṣā-vidhānena. This dīkṣā-vidhāna, recommended by Sanātana Gosvāmī, means Pāñcarātriki-vidhi. Now Rūpa Gosvāmī says in his Bhakti-rasāmṛta-sindhu,
- śruti-smṛti-purāṇādi-
- pañcarātriki-vidhiṁ vinā
- aikantiki harer bhaktir
- utpatayaiva kalpate
- (Brs. 1.2.101)
Without undergoing the process of śruti—means Vedas—smṛti, the Purāṇas, and other corollary literatures, Bhagavad-gītā, Mahābhārata, Smṛti, Manu-smṛti, the laws given by Manu, Parāśara... So Hari-bhakti, devotional service to the Lord, must be approved by Vedas, Purāṇas. Pāñcarātriki-vidhi. Otherwise, any show of devotional service is simply disturbance. Anyone can manufacture. And it is being supported by some very big missionary activities: yata mata tata pata. You can manufacture your way of religious principles. But that is not Vedic way. Vedic way is evaṁ paramparā-prāptam (BG 4.2). Although we are initiating people from low-grade society, still, following the principles of Pāñcarātriki-vidhi, injunction of the Gosvāmīs. Therefore it is bona fide. Bhāgavata-vidhi, Pāñcarātriki-vidhi, they are bona fide vidhi. So Sanātana Gosvāmī... Rūpa Gosvāmī, first offers his respectful obeisances to his elder brother, Sanātana Gosvāmī, because Rūpa Gosvāmī accepted him as spiritual master. And he was initiated by Caitanya Mahāprabhu, Sanātana Gosvāmī. Rūpa Gosvāmī also. So he offers his respectful obeisances to Sanātana Gosvāmī. Go on.