The five elements of heavenly stems: A and B belong to the same wood, A is the yang wood, and B is the yin wood; C and D belong to the same fire, C is yang fire, D is yin fire, E belongs to the same soil, E is yang soil and E is yin soil; Belonging to gold, Geng is yang gold, Xin is yin gold; Both nonyl and decyl belong to water, nonyl is yang water and decyl is yin water.
Ground branch and five elements:
Yin is wood, Yin is yang wood, and the base is Yin wood; It is already a fire in the afternoon, and it is a yang fire in the afternoon, which is already a yin fire; Belonging to gold, applying for it is especially yin gold, belonging to water, being a child, and the sea being yin water; Chen Shu's ugliness is not soil, Chen Shu is positive soil, and ugliness is not negative soil.
Generally speaking, the so-called five elements of a birthday refer to the five elements of a birthday.
The "five elements of a birthday" mentioned by professional forecasters mostly refer to birthdays and the five elements they like to use.