Sudāmā (reading): "Viṣṇu is the Lord of all living creatures, all worlds, and all beauties, and protector of everyone. The Lord created this material world for the conditioned souls to learn how to perform yajñas for the satisfaction of Viṣṇu so that while in the material world they can live very comfortably without anxiety in life. Then after finishing the present material body they can enter into the kingdom of God. That is the whole program for the conditioned souls. By performance of yajña the conditioned souls gradually become Kṛṣṇa conscious and become godly in all respects. In this age of Kali the saṅkīrtana-yajña, or chanting the holy names of God, is recommended by the Vedic scriptures, and this transcendental system was introduced by Lord Caitanya Mahāprabhu for the deliverance of all men. Saṅkīrtana-yajña and Kṛṣṇa consciousness go well together. Lord Kṛṣṇa in His devotional form as Lord Caitanya is worshiped in the Śrīmad-Bhāgavatam as follows, with special reference to the saṅkīrtana-yajña. 'In this age of Kali people who are endowed with sufficient brain substance will worship the Lord who is accompanied by His associates, by performance of saṅkīrtana-yajña.' "
Prabhupāda: Yes. There is a verse, yajñaiḥ saṅkīrtana-prāyair yajanti hi sumedhasaḥ (SB 11.5.32). Those who are intelligent class of men in this age, they'll worship this form of the Lord. Who? Kṛṣṇa-varṇaṁ tviṣākṛṣṇaṁ sāṅgopāṅgāstra-pārṣadam. The Lord who is chanting always Kṛṣṇa, but His body is not black. Fair-complexion. This is Caitanya Mahāprabhu. Sāṅgopāṅgāstra-pārṣadam. Followed by many devotees. Just like you'll see the Caitanya Mahāprabhu's picture. He is followed always by His associates and devotees. Sāṅgopāṅgāstra-pārṣadam. Yajñaiḥ saṅ... This form of the Lord should be worshiped. Therefore we do not worship Kṛṣṇa directly. Through Lord Caitanya Mahāprabhu, through saṅkīrtana movement. That is the process prescribed in the śāstra.
You cannot worship Kṛṣṇa directly. Then you will misunderstand. Those who are not following the path of Caitanya's saṅkīrtana movement, if they want to understand Kṛṣṇa, they'll simply misrepresent Kṛṣṇa's this rāsa-līlā in this way. That's all.