Without Krishna, all the supplementary literatures like the Puranas and Mahabharata are simply stories or historical facts. But with Krishna they become transcendental.
Srimad Bhagavatam 1.7.12
Bhagavad-gita is the instruction given by Krishna, and Srimad-Bhagavatam is the book containing topics exclusively about Krishna and His devotees. These two books are the special nectar of the words of Krishna.
Srimad Bhagavatam 4.4.44,
The Supreme Personality of Godhead is the best friend and well-wisher.
Srimad Bhagavatam 8.9.27
The Lord can be known by the mercy of the Lord only, and by no other means.
Srimad Bhagavatam 1.11.39,
Radharani is compassionate nature of Krishna.
Everyone is independent to think or desire, but the fulfillment of one’s desire depends on the supreme will. This law is expressed as “Man proposes, God disposes.”
Srimad Bhagavatam 3.4.11,
This perfect stage of self-realization is attained not by artificial means, but under the lotus feet of the Lord, who is always transcendental.
Srimad Bhagavatam 1.3.33,