清梦而已
[qīng mèng ér yĭ]
This username 'Just a Lucid Dream' suggests that all one's dreams or memories are as ephemeral and ungraspable as mist, which may convey the person's aloof and carefree lifestyle, or express some melancholy. Generally speaking, people who use this name might enjoy recalling old events but regard those bygone days with an objective and tranquil attitude.