Verse 4.28
हानमेषां क्लेशवदुक्तम् ॥२८॥
hānaṃ eṣāṃ kleśavat-uktam ||28||
Their destruction is in the same manner as of ignorance, etc., as said before.
The gap between mind and the seer can breed disharmony and disturbance in one’s self. As fire is deprived of fuel, the yogi has to remove the latent impressions from the consciousness and extinguish them, for it to be in harmony with the seer.
Patanjali advises the yogi to eradicate disturbances by reintroducing yogic disciplines with faith, vigour and vitality. As the sadhaka earlier strove to
rid himself of the afflictions of avidya, asmita, raga, dvesha and abhinivda, the exalted yogi must, through practice, press, dry out and close the perforations in the consciousness.
In 4.27 verse stated that subconscious impressions surface in the form of intellectual pride, which hinders progress towards the goal of union with the divine seer. As roasted seeds do not germinate, so the fire of wisdom mnst burn out impressions and ambitions, ending their power to generate disturbing thoughts so that the mind maintains its union with the seer forever.
PATANJALI YOGA SUTRAS