KB 2-3 The Lord can be pleased only by a humble attitude in the service spirit. The more we render service unto the Lord under the direction of the spiritual master, the more we make advancement on the path of approaching the Lord. We cannot demand any grace or mercy from the Lord because of our service rendered to Him. He may accept or not accept our service, but the only means to satisfy the Lord is through the service attitude, and nothing else.
Dec 13 1973 LA lecture... This patraṁ puṣpam is not important thing. The important thing is bhakti, devotion. That is wanted. Without bhakti, if you offer Kṛṣṇa very big plate, Kṛṣṇa is not hungry to take your food. He'll not accept it. He'll not accept anything if you do not offer with your love, bhaktyā, love and serving spirit: "My dear Kṛṣṇa, You are so opulent. I have nothing to offer You because You have got everything. But I have tried to collect the things to my best power, so I am offering You. Kindly take it." This is mantra. This is mantra. Don't require much mantra. That meekness, that humbleness,
May 6 1973 LA lecture... He is self-satisfied, pūrṇa. But if His devotee offers Him something with love and affection, then He accepts. So do not think that "We have made such nice, sumptuous plate for Kṛṣṇa. Kṛṣṇa must eat." No. There is no such thing, "must." You cannot make Kṛṣṇa must. That is not possible. So Kṛṣṇa will see how much you have love for Him. Then He will accept. Otherwise He'll reject. Therefore, it is forbidden, those who are nondevotee, those who are not initiated, those who are not chanting regularly, their offering to Kṛṣṇa will not be accepted. We must be very careful. We must know our position, whether I am sincerely following the principles of devotional service. Then Kṛṣṇa will accept. Yo me bhaktyā prayacchati. The real thing is bhakti. So either you offer Kṛṣṇa prayers or you offer foodstuff, everything must be along with bhakti, devotion, love. Then Kṛṣṇa will accept.