壁上土 · Earth on the Wall

bì shàng tǔ · the Na Yin of 庚子 and 辛丑

壁上土 Earth on the Wall, bì shàng tǔ, is the Na Yin of the pillars 庚子 and 辛丑: an Earth element with an image of its own, one of the thirty Na Yin of the sixty-pillar cycle. Any pillar of a chart, and any day in the almanac, that is 庚子 or 辛丑 carries it.

Na Yin 纳音, the "received sound", gives each pair of pillars in the sixty-cycle an element and an image of its own. It is read alongside the elements of the stem and branch, not instead of them, and the element it names can differ from both.

The facts

Element

土 Earth

Pillars

庚子辛丑

Each Na Yin covers two consecutive pillars of the sixty-cycle.

庚子辛丑

Where you meet it

• Under each pillar in the Pro chart view.
• On every almanac day page, for the day pillar.

Na Yin is one layer among several. It adds an image to a pillar; it does not replace the elements of its stem and branch.