The sukha anusayi ragah yogic sutra states about the exceedingly damaging effects of pleasures and emotional attachments. Worldly senses have a tremendous hold on the human mind and if one starts neglecting yogic austerity, he is sure to be bound within the restraints of provocations, passion, lust, avarice or satisfaction of sensuousness.

sukha happiness, delight, sweetness, pleasure
anusayi close connection, close attachment, succeeded by, followed by
ragah love, affection, musical mode
Pleasure leads to desire and emotional attachment.

Residing on pleasurable experiences inflames desire and a sense of attraction, which induces attachment. Pleasurable experiences spawns greed and lust, which strengthen attachment and provokes a greater passion, as one always wants more and more. One becomes absorbed by the pursuit of pleasure, and addicted to satiation of the senses. The aspirer may thus forget his chosen path and allow himself to be caught up in sorrow and sickness.