Historically, letter writing was more than just communication in China; it was an art form and a reflection of one's character and education. Calligraphy (书法, shūfǎ) was a paramount skill for any scholar, and a beautifully written letter was a gift in itself. The language used was often poetic and followed strict conventions of respect, especially when writing to elders, teachers, or officials.
Comparison with Western Culture: While letter writing was also a formal practice in the West, the Chinese tradition placed a much stronger emphasis on the aesthetic quality of the writing itself (the calligraphy) as an expression of the writer's inner cultivation. A Western business letter prioritizes clarity and conciseness, whereas a traditional Chinese letter might use elaborate, respectful language and allusions to classic texts to convey its point elegantly. This value of thoughtful, well-composed communication continues today, even in digital form. Writing a long, carefully worded email to a professor still carries the spirit of traditional 写信, in contrast to a casual text message.