Verse 32

भग्नस्फटिकवद्विद्धि मनः सक्तमपावनम् ।अभग्नस्फटिकाभासमसक्तं विद्धि मे मनः

In plain words

Know the attached mind to be impure, like a cracked crystal; know from me the unattached mind to shine like an unbroken crystal.