The various elements of the subject here suggest various symbolic wishes, all of which are auspicious greetings suitable for a birthday. The crane, as the messenger of the Daoist Immortals, and because it is a long-lived creature, represents immortality and thus longevity. The crane (he) holding a tally (suan) in its beak is a pictorial representation of the term hesuan which, like the peaches of immortality, is an allusion to longevity. The bat and sea waves represent the wish "[May your] happiness be as [vast as] the Eastern Sea", while the peaches also represent longevity. The sea (hai) with a house (wu) and a crane holding a tally (which can also be called chou) in its beak form the rebus haiwu tianchou (Adding tallies to the immortals abode above the sea ), a subtle expression used to wish people many happy returns on their birthdays. According to the Shanghai cishu chubanshe, in juan 2 of Dongpo zhilin (A Collection of Writings by Dongpo), the Northern Song scholar Su Dongpo (Su Shi, 1037-1101) recounts the story of three old men chancing to meet, and inquiring after each other's age one responded that he could not remember his age, but recalled that in his youth he had been a friend of Pangu (the legendary first being on the earth). Another said that whenever the sea had transformed into mulberry fields, he had put aside one tally; now ten houses had been filled with tallies. Based on this anecdote, the Chinese frequently use the expression haiwu tianchou to convey a birthday wish for longevity.