Tea tray, a shallow container for holding Teapot, Teacups, tea accessories, and even tea snacks. Regardless of its material or quality, it adheres to the principles of “broad, level, shallow, and white.” However, though these four words are simple, they are the most challenging to achieve.
Broad

A tea tray is also known as a tea boat because it carries all the tea utensils like cups, pots, accessories, and a Tea pet. Therefore, it must be broad enough to accommodate them. Even so, it is required to be broad enough to adapt to the number of guests. In my opinion, one can only handle affairs calmly and achieve success in life by adhering to this principle of breadth.
Level

A level tea tray ensures that the teacups are upright and the tea does not spill. Similarly, in dealing with matters, only by being fair can one win people's trust and confidence.
Shallow

A shallow tea tray makes it easy to remove the teacups. By making things convenient for others, we make things convenient for ourselves. Understanding this principle can prevent many conflicts.
White

White does not refer to color but rather to non-contention and non-showiness. It harmonizes with the style of the tea utensils by making itself inconspicuous. This is the epitome of noble character and integrity.
Source: Shangcheng Gu Pin Redwood Furniture Knowledge