Link to purport by A C Bhaktivedanta Swami Srila Prabhupada

Transcript of Bhakti-Shastri class on this verse by Chaitanya Charan

Bg 12.2

śrī-bhagavān uvāca
mayy āveśya mano ye māṁ
nitya-yuktā upāsate
śraddhayā parayopetās
te me yukta-tamā matāḥ

Synonyms: 

śrī–bhagavān uvāca — the Supreme Personality of Godhead said; mayi — upon Me; āveśya — fixing; manaḥ — the mind; ye — those who; mām — Me; nitya — always; yuktāḥ — engaged; upāsate — worship; śraddhayā — with faith; parayā — transcendental; upetāḥ — endowed; te — they; me — by Me; yukta–tamāḥ — most perfect in yoga; matāḥ — are considered.

Translation: 

The Supreme Personality of Godhead said: Those who fix their minds on My personal form and are always engaged in worshiping Me with great and transcendental faith are considered by Me to be most perfect.

 

Krishna has used the same words what Arjuna has used in his question

In question in 12.1 => bhaktās tvāṁ paryupāsate

While answering in 12.2 => nitya-yuktā upāsate

So Krishna replied is establishing worshiping personal aspect very explicitly. So Krishna replies in such a way which removes all ambiguities without any interpretation. 

śraddhayā parayopetās, their fiath is transcendental 

Mayavadi has idea that they have to fix mind on a form till they become transcendental after that they can leave the form and go to formless but it is not true What Lord has said is śraddhayā parayopetās, so with transcendental faith means even when we become transcendental we have to fix mind on Krishna only.

One may say that there is no word like Rupa is used which talks about personal form but Krishna has used the word Mam and  mayy, and there is no impersonal light is speaking to Arjuna it is Krishna speaking so Mam means Krishna Himself.

End of transcription.