Prabhupāda: Dṛḍha-vrata. If you have no dṛḍha-vrata, (laughing) that is no vow. So that dṛḍha-vrata means you must promise that "I shall chant at least, minimum, so many times." That is called dṛḍha-vrata.
Satsvarūpa: "With determination."
Prabhupāda: With determination. Otherwise, satataṁ kīrtayanto mām (BG 9.14). Satatam means twenty-four hours. Caitanya Mahāprabhu says, kīrtanīyaḥ sadā hariḥ (CC Adi 17.31). Harer nāma harer nāma harer nāma eva kevalam (CC Adi 17.21). But that we cannot do. Therefore to keep dṛḍha-vrata, we have fixed up a certain quantity. Chant that. Saṅkhyā-pūrvaka-nāma-gāna-natibhiḥ kālāvasānī-kṛtau. About the Gosvāmīs-saṅkhyā-pūrvaka: "So many times." Not only chanting, also offering obeisances. Saṅkhyā-pūrvaka-nāma-gāna-natibhiḥ. Nati means praṇati. "I shall offer obeisances hundred times." Gosvāmīs, they used to do that. Still in Rādhā-kuṇḍa, Vṛndāvana, you'll see many devotees. They offer, counting, flat, so many times. So we have to take some labor. It is not so easy thing that you realize (chuckling) God so easily. Saṅkhyā-pūrvaka-nāma-gāna-natibhiḥ kālāvasānī-kṛtau. The valuable time of human life should be utilized only for cultivating Kṛṣṇa consciousness. That is perfect. No other business. Sarva-dharmān parityajya (BG 18.66). That is sarva-dharmān. But if you cannot do that, all right, make minimum: "So many times I shall chant. So many times I shall offer obeisances." Make some dṛḍha-vrata. Then gradually it will be successful.