Srimad Bhagavatam

References to text SB 1.2.6
SB 1.2.6: The supreme occupation [dharma] for all humanity is that by which men can attain to loving devotional service unto the transcendent Lord. Such devotional service must be unmotivated and uninterrupted to completely satisfy the self.

Text №
“ ‘Perspiration, trembling, standing on end of one’s bodily hairs, tears, faltering voice, fading complexion, madness, melancholy, patience, pride, joy and humility — these are various natural symptoms of ecstatic love of Godhead, which causes a devotee to dance and float in an ocean of transcendental bliss while chanting the Hare Kṛṣṇa mantra.
Lord Caitanya in Five Features
CC 1.7.89-90
Śrī Caitanya Mahāprabhu replied, “The Vedas, Purāṇas and great learned sages are not always in agreement with one another. Consequently there are different religious principles.
The Lord Travels to Vrindavana
CC 2.17.184
“Among human beings, those who are followers of the Vedic principles are considered civilized. Among these, almost half simply give lip service while committing all kinds of sinful activities against these principles. Such people do not care for the regulative principles.
Lord Sri Caitanya Mahaprabhu Instructs Srila Rupa Gosvami
CC 2.19.146
“Without devotional service, all other methods for spiritual self-realization are weak and insignificant. Unless one comes to the devotional service of Lord Kṛṣṇa, jñāna and yoga cannot give the desired results.
The Process of Devotional Service
CC 2.22.18
“ ‘Are there no torn clothes lying on the common road? Do the trees, which exist for maintaining others, no longer give alms in charity? Do the rivers, being dried up, no longer supply water to the thirsty? Are the caves of the mountains now closed, or, above all, does the unconquerable Supreme Personality of Godhead not protect the fully surrendered souls? Why then should learned persons like devotees go to flatter those who are intoxicated by hard-earned wealth?’ ”
Life's Ultimate Goal -- Love of Godhead
CC 2.23.114