Geng Shen (庚申) Day Pillar

The Day Master (日干) Geng (庚) has the energy of raw iron, being quick in decision-making and highly loyal. The Day Branch (日支) Shen (申) is versatile and adaptable to change. Since the Day Branch has the same energy as the Day Master, the roots are solid and self-confidence is strong.

You get along with your spouse like a friend, but you should avoid power struggles. The Day Branch Shen (申) is the spouse palace, implying a spouse who is versatile and adaptable to change.

In the Twelve Stages of Qi (十二運星), it corresponds to Stable (建祿), giving you a strong ability to stand on your own and achieve self-made success.

As your energy is strong, beware of stubbornness.

Gengshen (Korean: Gyeongsin) places raw iron on Shen, a branch of the same metal, at the Stable stage (建祿): decisions come fast, execution faster, and tangible results matter most. Hidden in Shen, Ren water as Eating God (食神) gives a knack for mastering techniques and inventing better methods, while Wu earth as Indirect Resource (偏印) brings a feel for how machines and systems work underneath. Engineering, manufacturing, the military or police, sports and surgery—fields that call for precise hands and bold judgment—tend to suit it. Money often comes in big and goes out big, so some structure to rein in Companion-star (比肩) spending is worth having.

A Gengshen person knows clearly what they like and dislike, so in romance they tend to show their feelings directly instead of playing push and pull. The loyalty of metal means that once someone counts as 'theirs,' they become a sturdy shield for that person. Thanks to the wit of the Eating God (食神), friendships easily become places of loud laughter, and they are remembered as the one who steps up first when things get hard. The friction is metal striking metal: blunt words can wound without them noticing. Asking how the other person feels before offering a verdict helps keep the warmth in these bonds.

For Gengshen, using its fortune well means applying to itself the process of refining raw iron into a useful tool. Its napeum, Pomegranate Wood (石榴木), is a tree whose tough rind shelters rows of bright seeds; the more this person lets the delicacy beneath the hard exterior show, the more people gather around. Keeping a steady outlet for Eating God (食神) energy—training, sports, or a hands-on craft—channels intensity in a healthy direction. A rule of sleeping on big decisions for one night, and a habit of hearing out someone close once more, carry the Stable-stage strength much further.

The decisive energy of solemn execution (肅殺). Strong sense of loyalty and justice, with clear-cut boundaries.