Lord Caitanya has given the greatest boon: in this age one simply has to chant the holy name of God to attain perfection in spiritual life.
Srimad Bhagavatam 3.21.7,
One may or may not know the power of chanting the Hare Krishna mantra, but if one chants the holy name he will become free from all sinful reactions.
Srimad Bhagavatam 6.2.18,
Real independence means complete faith in the mercy of the Lord without dependence on the conditions of matter.
Srimad Bhagavatam 1.18.22,
The highest summit of spiritual perfection is knowledge of the Supreme Personality of Godhead.
Bhagavad Gita 10.7,