When one casts a spell with enchanting eyes and then gets entangled in another's magic, no remedy can be found to counteract the poison of that very magic.

This couplet beautifully describes the profound power of attraction. It says that when someone, even a person whose own eyes might be enchanting and cast a spell, falls under the magic or charm of another, there's no antidote. The "poison" of this new enchantment becomes so deep-seated that no medicine or remedy can undo its effect. It highlights how certain captivations are so powerful and consuming that they leave one utterly helpless, with no escape from their intoxicating influence.