Literature Reference: 蟋蟀在堂，岁聿其莫。—— 《诗经·国风·唐风·蟋蟀》 The crickets are in the hall, the year is drawing to its close. From 'The Book of Songs: Odes of Tang, The Cricket'.
聿: The role of smooth succession.
莫: Vast and expansive, encompassing the boundless.
Meaning: Yu Mo signifies the approaching end of the year, reminding people to cherish time and not to waste it.