māṁ ca yo 'vyabhicāreṇa bhakti-yogena sevate sa guṇān samatītyaitān brahma-bhūyāya kalpate (Bg. 14.26)

One who engages in the spiritual activities of unalloyed devotional service (avyabhicarini-bhakti) is immediately elevated to the transcendental platform, and he is to be considered brahma-bhuta, which indicates that he is no longer in the material world but in the spiritual world. Devotional service is enlightenment or awakening. When the living entity perfectly performs spiritual activities under the direction of the spiritual master, he becomes perfect in knowledge and understands that he is not God but a servant of God. As explained by Caitanya Mahaprabhu, jivera 'svarupa' haya-krsnera 'nitya-dasa': the real identity of the living entity is that he is an eternal servant of the Supreme (Cc. Madhya 20.108). As long as one does not come to this conclusion, he must be in ignorance. This is also confirmed by the Lord in Bhagavad-gita (7.19). Bahunam janmanam ante jnanavan mam prapadyate: "After many births of struggling for existence and cultivating knowledge, when one comes to the point of real knowledge he surrenders unto Me." Such an advanced mahatma or great soul is very rarely to be seen. Thus although the Mayavadi philosophers appear to be very advanced in knowledge, they are not yet perfect. To come to the point of perfection they must voluntarily surrender to Krsna.