早安早安早已安心晚安晚安安入我心
[zăo ān zăo ān zăo yĭ ān xīn wăn ān wăn ān ān rù wŏ xīn]
This nickname plays on a common greeting, using good morning (early peace) and good night as phrases to express the feeling that peace has entered one's heart throughout the day.