Srimad Bhagavatam

References to text SB 11.2.40
SB 11.2.40: By chanting the holy name of the Supreme Lord, one comes to the stage of love of Godhead. Then the devotee is fixed in his vow as an eternal servant of the Lord, and he gradually becomes very much attached to a particular name and form of the Supreme Personality of Godhead. As his heart melts with ecstatic love, he laughs very loudly or cries or shouts. Sometimes he sings and dances like a madman, for he is indifferent to public opinion.

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“Saying this, My spiritual master taught Me a verse from Śrīmad-Bhāgavatam. It is the essence of all the Bhāgavatam’s instructions; therefore he recited this verse again and again.
Lord Caitanya in Five Features
CC 1.7.93
“ ‘When a person is actually advanced and takes pleasure in chanting the holy name of the Lord, who is very dear to him, he is agitated and loudly chants the holy name. He also laughs, cries, becomes agitated and chants just like a madman, not caring for outsiders.’
Lord Sri Caitanya Mahaprabhu's Travels to the Holy Places
CC 2.9.262
“ ‘When a person is actually advanced and takes pleasure in chanting the holy name of the Lord, who is very dear to him, he is agitated and loudly chants the holy name. He also laughs, cries, becomes agitated and chants just like a madman, not caring for outsiders.’
Life's Ultimate Goal -- Love of Godhead
CC 2.23.41
“ ‘When a person is actually advanced and takes pleasure in chanting the holy name of the Lord, who is very dear to him, he is agitated and loudly chants the holy name. He also laughs, cries, becomes agitated and chants like a madman, not caring for outsiders.’
How All the Residents of Varanasi Became Vaishnavas
CC 2.25.141
“ ‘When a person is actually advanced and takes pleasure in chanting the holy name of the Lord, who is very dear to him, he is agitated and loudly chants the holy name. He also laughs, cries, becomes agitated and chants just like a madman, not caring for outsiders.’
The Glories of Srila Haridasa Thakura
CC 3.3.179