[xīn shǒu xiāng wàng]   

心    手    相    忘    极言得心应手。比喻技艺纯熟或做事情非常顺利。

心手相忘是一个汉语词汇，基本意思是极言得心应手。比喻技艺纯熟或做事情非常顺利。

His hands respond with delicacy to whatever the mind directs

心往神驰    心无旁骛    心劳日拙    心急如火    心旷神飞