SB 5.3.6
parijananuraga-viracita-sabala-samsabda-salila-sita-kisalaya-tulasika-durvankurair api sambhrtaya saparyaya kila parama paritusyasi.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O Supreme Lord, You are full in every respect. You are certainly very satisfied when Your devotees offer You prayers with faltering voices and in ecstasy bring You tulasi leaves, water, twigs bearing new leaves, and newly grown grass. This surely makes You satisfied.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
One does not need great wealth, education or opulence to satisfy the Supreme Personality of Godhead. If one is fully absorbed in love and ecstasy, he need offer only a flower and a little water. As stated in Bhagavad-gita, patram puspam phalam toyam yo me bhaktya prayacchati: “If one offers Me with love and devotion a leaf, a flower, fruit or water, I will accept it.” (Bg. 9.26)
The Supreme Lord can be pleased only by devotional service; therefore it is said here that the Lord is surely satisfied by devotion and nothing else. Quoting from the Gautamiya-tantra, the Hari-bhakti-vilasa states:
tulasi-dala-matrena
jalasya culukena va
vikrinite svam atmanam
bhaktebhyo bhakta-vatsalah
“Sri Krsna, who is very affectionate toward His devotees, sells Himself to a devotee who offers merely a tulasi leaf and a palmful of water.” The Supreme Lord is causelessly merciful upon His devotee, so much so that even the poorest of men can offer Him a little water and a flower in devotion and thus please Him. This is due to His affectionate dealings with His devotees.