It was the Lord's wish, therefore, to establish another paramparā in the same line of thought that was coming down from the sun-god to others, and it was His wish that His teaching be distributed anew by Arjuna. He wanted Arjuna to become the authority in understanding the Bhagavad-gītā. So we see that Bhagavad-gītā is instructed to Arjuna especially because Arjuna was a devotee of the Lord, a direct student of Kṛṣṇa, and His intimate friend. Therefore Bhagavad-gītā is best understood by a person who has qualities similar to Arjuna's. That is to say he must be a devotee in a direct relationship with the Lord. As soon as one becomes a devotee of the Lord, he also has a direct relationship with the Lord.