From the Padma Purana: "My Lord, I know that young girls have natural affection for young boys, and that young boys have natural affection for young girls. I am praying at Your lotus feet that my mind may become attracted unto You in the same spontaneous way."
From the Nectar of Devotion: One should feelingly pray and become eager to render his particular service to the Lord...one should learn how to cry for the Lord...such tears are the price for the highest perfection. If one develops this laulyam, or excessive eagerness for meeting and serving the Lord in a particular way, that is the price to enter into the kingdom of God.
When one is sufficiently eager to achieve success in devotional service, that eagerness is called samutkantha. This means "complete eagerness." Actually this eagerness is the price for achieving success in Krsna consciousness...It is stated in the Vedic literature that to purchase the most valuable thing, Krsna consciousness, one has to develop intense eagerness for achieving success.
I am such a fool and a rascal that I am always eager for sense gratification, and only sometimes a little eager for Krsna consciousness. Still, I'm hopeful.
In this connection, also from the Nectar of Devotion: Rupa Gosvami prays, "I have no love for Krsna, nor for the causes of developing love of Krsna - namely, hearing and chanting. And the process of bhakti-yoga, by which one is always thinking of Krsna and fixing His lotus feet in the heart, is also lacking in me. As far as philosophical knowledge or pious works are concerned, I don't see any opportunity for me to execute such activities. But above all, I am not even born of a nice family. Therefore I must simply pray to You, Gopijana-vallabha. I simply wish and hope that some way or other I may be able to approach Your lotus feet, and this hope is giving me pain, because I think myself quite incompetent to approach that transcendental goal of life."