Without puṇya-karma, without pious activities, nobody can enter into the devotional service. Na māṁ . . .
- yeṣām anta-gatam pāpaṁ
- janānāṁ puṇya-karmaṇam
- te dvanda-moha-nirmuktā
- bhajante māṁ dṛḍha-vratāḥ
- (BG 7.28)
So this, this process should be adopted, how to become sukṛtina. Sukṛti means yajña-dāna-tapa-kriyā. One must perform sacrifices as prescribed in the śāstras, and they must give in charity their hard-earned money for Kṛṣṇa's cause. That is called dāna. Yajña, dāna and tapasya. Tapasya.
Just like tomorrow is Śrī Rāma-navami. The tapasya will be that all the devotees will observe fasting from morning till evening. This is called tapasya. This is . . . just like Ekādaśī day—there is no eating sumptuously. Simply you take little fruits and flowers. Try to avoid that also. You don't take even water. That is really Ekādaśī. But because we cannot do it—the, in the Kali-yuga the time is different—therefore we are allowed to take little fruits and milk, which is called anukalpa. These are different methods of tapasya.
And yajña. This yajña, saṅkīrtanaiḥ prāyair yajñaiḥ, yajanti hi su-medhasaḥ. In this age you cannot perform that big aśvamedha yajña, gomedha yajña, rājasūya yajña, so many other yajñas. It is not possible. First of all, you have no means to perform such yajñas, hundreds and hundreds of tons ghee required for putting into the sacrificial fire. You have not even a drop of your ghee. So forget all those yajñas. In this age, yajñaiḥ saṅkīrtanaiḥ prāyaiḥ.