From Srimad Bhagavat Puran.10,38/24-27
Thus musing on Krsna all the way, the son of Svaphalka arrived at the cowherd settlement, as the Sun sank to the western mount, O protector of men.
He beheld there in the pasture the footprints of Sri Krsna, the sacred dust of whose feet is bourne on their crown by the guardians of all the worlds, which serve as ornaments on the Earth, and were distinguished by the marks of a lotus, a grain of barley, a goad and so forth.
His impatience having been emensely hightened by the joy derived from their sight, his hair standing on end through love and his eyes bedimmed with tears, he jumped down from the chariot exclaiming, "Ah ! these are the particles of dust of my lord's feet!"
This much is the end to be attained by those invested with a body, ie, that giving up hypocrisy, fear and worry, they should cultivate through the sight of Hari's images, the hearing of his praises and so forth, and emulate that ecstatic mood which was felt by Akrura from the time he received the mandate (from Kamsa).