If by accumulating pious activities (krta-punya-punjah) one is raised to the platform of pure devotional service, Krishna is always visible in the core of one’s heart. One who has attained such perfection is allbeautiful in transcendental bliss. The present Krishna consciousness movement is an attempt to keep Krishna in the center, for if this is done all activities will automatically become beautiful and blissful. – His Divine Grace A. C. Bhaktivedanta Swami Prabhupada Srimad-Bhagavatam 10.13.8, Purport

The Lord never refuses His surrendered devotee or leaves his desires unfulfilled. The Lord has the sole power to fulfill all our requirements and to give us full protection. If we can gain this conviction, we will become fearless. We will no longer feel anxiety. We will become happy. – Srila Bhaktisiddhanta Sarasvati Thakura Amrta Vani, Chapter “Material and Spiritual Topics”

The word “Brahman” indicates the complete Supreme Personality of Godhead, who is Sri Krishna. That is the verdict of all Vedic literature. – Sri Caitanya Mahaprabhu Sri Caitanya-caritamrta, Madhya-lila 6.147

We consider chanting to be alone the most excellent form of bhakti, better than remembering, which appears only in one’s own turbulent heart. For chanting harnesses not only the faculty of speech, which it engages directly, but also the mind and sense of hearing. And chanting helps not only the person practicing it but others as well. – Vaikuntha-dutas Brihad-bhagavatamrta 2.3.148

Whoever knows Me as the Supreme Personality of Godhead, without doubting, is to be understood as the knower of everything, and he therefore engages himself in full devotional service, O son of Bharata. – Lord Sri Krishna Bhagavad-gita 15.19

O my Lord, Your devotees can see You through the ears by the process of bonafide hearing, and thus their hearts become cleansed, and You take Your seat there. You are so merciful to Your devotees that You manifest Yourself in the particular eternal form of transcendence in which they always think of You. – Lord Brahma Srimad-Bhagavatam 3.9.11

Lord Krishna has appeared as Bhagavatam through Sukadeva and Parikshit, and like the sun among the planets, it shines among the Puranas. It has twelve forms (volumes), just as the sun has twelve forms for each of the months of the year. With eighteen thousand verses like its leaves, it has appeared like a desire tree to fulfill the goals of the great devotees. – Srila Visvanatha Cakravarti Thakura Srimad-Bhagavatam 1.1.1, Commentary