Long ago, a foolish young man visiting the capital happened to catch a glimpse of the king's daughter. Struck by her extraordinary beauty, he became hopelessly infatuated and began indulging in wild fantasies.
"If only I could marry a princess as my wife, how wonderful that would be!"
Returning home, he could think of nothing but marrying the princess, and soon fell into a lovesick state, unable to eat or drink, growing thinner with each passing day.
When his relatives and friends learned he was ill, they came to visit him one after another and asked about the cause of his sickness. He truthfully told them the whole story and said, "If I cannot marry the princess, I fear my life will be in danger."
Relatives and friends comforted him, pretending to say, "Don't worry. We can send someone to the capital to speak with the king. If the princess is not yet betrothed, we'll ask the king to marry her to you."
The foolish young man, upon hearing this, seemed to feel a bit better and said seriously, "That's really too kind of you! Go quickly!"
A few days later, those relatives and friends came to visit him again. To discourage him from his desire to marry the princess, they deceived him, saying, "We have already sent someone to discuss it with the king. The king asked the princess, and she refused."
The young man, hearing this, took it as truth and said joyfully, "That's easy! As long as I go see the princess once more, she will surely marry me!" Later, the idiom "one-sided wish" came to describe doing things based only on one's own desire, without considering whether objective conditions or the other party's willingness allow it.
Source: *The Hundred Parables Sutra*
Meaning of the Idiom: Later, the Chinese idiom "一厢情愿" came to describe how doing things based only on one's own desire, without considering whether objective conditions or the other party's willingness allow it.