Reading the chart
A BaZi chart is also a small ecology of the five elements (五行): wood, fire, earth, metal and water. Every stem carries an element; every branch carries hidden stems — a main qi, sometimes a middle and a residual one — each with its own weight. Counting them, weighted, gives the chart's element balance.
Balance here is descriptive, not moral. An element that is prominent is a loud instrument in the band; a quiet element is the resting instrument. Charts that "lack" an element are extremely common and are not defects — traditional practice reads what is present, how it moves, and where support or expression flows.
The elements also generate and check each other in a cycle: wood feeds fire, fire makes earth, earth bears metal, metal collects water, water feeds wood — and each checks another. A chart is read through these motions: where the ecology flows easily, and where it jams.
One caution worth repeating: the seasons in BaZi belong to the Chinese solar calendar, not to your hemisphere's weather. A "winter water" reading is a statement about the solar-term month of a birth, wherever on earth you were born.