春分
Chūn Fēn · Spring Equinox
Each year lands around 3/21 in the Gregorian calendar (the exact date shifts slightly year to year).
Three Hou — five days each
- Swallows arrive
- Thunder begins to sound
- Lightning first appears
The 'three hou' (三候) is the traditional five-day-each observation pattern within a single solar term — fifteen days in all.
What this term marks
Chun-Fen (Spring Equinox). Day and night are equal; cold and warmth balance. The ancients said an egg balances easiest on this day — yin and yang are at their most poised.
Folklore & farming
'On Chun-Fen, stand an egg' — folk experiment, an egg balanced upright as a symbol of yin-yang harmony. Time for outings (踏青), kite-flying, ancestral tomb visits.
What it means in a BaZi chart
Mid-Mao month — Wood at its peak. Charts already Wood-heavy benefit from Fire (which drains Wood downstream) rather than Metal (which fights it head-on and bruises the central qi).
Guidance, not prophecy. For reflection, not decision.