"Previously, I had been a very learned brahmana. But due to my pride, I used to insult other learned persons. I was also extremely jealous. After I died, I was cast into many hells, and after a long time of suffering, I achieved this body of a parrot. Due to my past sinful activities, my mother and father died while I was a baby. One day, while I was lying on the hot sands, with no protection, some rishis saw me, and took me to their ashram, and put me in a cage. At that same place, the children of those rishis were learning the recitation of the First Chapter of the Srimad Bhagavad-gita, Hearing them repeat those slokas, I also started repeating those slokas along with them.
     "Shortly after, one thief stole me from that place and sold me to this pious lady." Lord Vishnu continued, "By reciting the First Chapter of the Bhagavad-gita, that parrot had become completely pure. And by hearing that recitation, that prostitute also became completely pure. And by receiving some of the pious results of hearing that recitation, Susharma also become completely pure. After discussing for some time the glories of the first chapter of Bhagavad-gita, Susharma returned to his home, and the three of them individually engaged in reciting the First Chapter of Srimad Bhagavad-gita, and very quickly attained the supreme destination, Vaikuntha." Anyone who recites, who hears, or studies the First Chapter of Bhagavad-gita, will very easily cross over the ocean of material miseries, and attain the service of the lotus-feet of Lord Krishna. 
From Gita-Mahatmya of Padma Purana