Literature Reference: 先王之道，斯为美；小大由之。有所不行，知和而和，不以礼节之，亦不可行也。——《论语·学而》 The way of the former kings is truly admirable. Both great and small matters follow this principle. If something does not align with it, even if harmony is pursued without the restraint of propriety, it cannot be practiced. Source from 'The Analects: Learning'.
先: Formerly. Previously. Originally. Pioneer. What comes before in time or sequence, in contrast to "later."
颐: Health is the essence of a beautiful life.
Meaning: Xian Yi signifies following the wisdom of ancient sages, cultivating one's character, and nurturing a long and fulfilling life.