1) The document discusses the etiquette of drinking tea in China, which is not only a way of life but also a longstanding cultural tradition. There are different protocols for serving tea and drinking tea.
2) Some aspects of tea drinking etiquette that are covered include sitting properly with good posture, showing appreciation to the host when they serve tea, and savoring the tea by smelling it and taking slow sips.
3) The custom of "tapping the table with two bent fingers" when receiving tea is explained, tracing the origin of this tradition back to an encounter between the Emperor Xiang Long and some eunuchs at a tea house.