无心插柳柳成荫有心插花花不发
[wú xīn chā liŭ liŭ chéng yìn yŏu xīn chā huā huā bù fā]
The phrase reflects an old Chinese saying: sometimes things happen without much effort, while we often struggle with those we really try for. It conveys resignation mixed with some self-consolation. Here it can mean that unintentional deeds yield results, but our deliberate attempts often fail.