How to interpret Guangdong Roche Meteorological General Book

Guangdong Roche Meteorological Encyclopedia from Right to Left

Know those notes, read gossip, and have stars every month.

The "Four Outdays" mentioned in the Meteorological Manual means that the day before the vernal equinox, autumnal equinox, summer solstice and winter solstice is the four outings every year. Four days from the sun, ten days in a quarter, the ancients concluded that it was unlucky; In the 24 solar terms, the day before beginning of spring, Changxia, beginning of autumn and beginning of winter is the day. Four farewells are the beginning and end of four seasons. The ancients were afraid of exhaustion and decided it was unlucky. Therefore, it is generally useless not to choose this day to do great things on the fourth day of separation. It is unlucky for a new official to take office and an old official to abdicate.