TattvaGyan or true knowledge that happiness only comes from Krishna and not from worldly objects must become firm first. Initially, only a small portion of the mind will detach from seeking happiness in the world through the senses and instead fix on Krishna. Through continuous practice of detaching the mind from worldly attachments and attaching it to Krishna, over time a larger portion of the mind will shift towards Krishna attachment and away from worldly attachment, just as skills are developed over years of practice, not overnight. The key is to immediately redirect the mind to Krishna whenever detaching it from worldly objects or people, to prevent it from lingering on the lack of happiness in worldly things.