pañca-tattvātmakaḿ kṛṣṇaḿ
bhakta-rūpa-svarūpakam
bhaktāvatāraḿ bhaktākhyaḿ
namāmi bhakta-śaktikam

Let me offer my obeisances unto Lord Śrī Kṛṣṇa, who has manifested Himself in five as a devotee, expansion of a devotee, incarnation of a devotee, pure devotee and devotional energy. (CC-1:7:6).

harer nāma harer nāma
harer nāmaiva kevalam
kalau nāsty eva nāsty eva
nāsty eva gatir anyathā

In this Age of Kali there is no other means, no other means, no other means for self-realization than chanting the holy name, chanting the holy name, chanting the holy name of Lord Hari. (CC-1-17-21).

sādhu-sańge kṛṣṇa-bhaktye śraddhā yadi haya
bhakti-phala 'prema' haya, saḿsāra yāya kṣaya

By associating with a devotee, one awakens his faith in devotional service to Kṛṣṇa. Because of devotional service, one's dormant love for Kṛṣṇa awakens, and thus one's material, conditioned existence comes to an end. (2:22:49).

'sādhu-sańga', 'sādhu-sańga' — sarva-śāstre kaya
lava-mātra sādhu-sańge sarva-siddhi haya

The verdict of all revealed scriptures is that by even a moment's association with a pure devotee, one can attain all success.(2:22:54).

kṛṣṇa-ādi, āra yata sthāvara-jańgame
kṛṣṇa-preme matta kare kṛṣṇa-sańkīrtane

The holy name of Kṛṣṇa is so attractive that anyone who chants it — including all living entities, moving and nonmoving, and even Lord Kṛṣṇa Himself — becomes imbued with love of Kṛṣṇa. This is the effect of chanting the Hare Kṛṣṇa mahā-mantra. (3:3:268).

bhajanera madhye śreṣṭha nava-vidhā bhakti
'kṛṣṇa-prema', 'kṛṣṇa' dite dhare mahā-śakti

Among the ways of executing devotional service, the nine prescribed methods are the best, for these processes have great potency to deliver Kṛṣṇa and ecstatic love for Him. (3:4:70).