(And as soon as the heart is cleansed of all dirty things, material contamination, then we can see what is our relationship with Kṛṣṇa. Therefore, Kṛṣṇa recommends that "Somehow or other, you try to be attached to Me.") 

That is called svarūpa-siddhi. How we are . . . how I am related with Kṛṣṇa, that will be revealed. I have got a relationship with Kṛṣṇa eternally. Now it is covered. So practice this yoga means reviving our original relationship with Kṛṣṇa. In the Caitanya-caritāmṛta it is said:
nitya-siddha kṛṣṇa-prema 'sādhya' kabhu nayaśravaṇādi-śuddha-citte karaye udaya(CC Madhya 22.107)
It is simply awakened. Not that artificially we are imposing some impression to the minds of our students that they a