The San He combination is often known as the 3 Harmony relationship.
It basically refers to the following trios, with resulting element produced:
- Shen + Zi + Chen = Water
- Hai + Mao + Wei = Wood
- Yin + Wu + Xu = Fire
- Si + You + Chou = Metal
As observed above, there are 4 sets of San He combinations between earthly branches.
When a San He combination appears in a BaZi chart, it strengthens one of the 5 elements. Sometimes to the point where that element becomes the chart’s dominant force.
This kind of alignment often marks unusually strong ties: a network of contacts, influential friends, or access to elite circles.
When the combo forms in the right order and produces an element that benefits the self-element, the persons frequently finds themselves linked to powerful groups or moving easily among high-status people.
This is linked heavily to connections with people, groups, tribes, etc.
If we flip the situation. And the element generated by the San He is harmful to the overall chart, expect messy connections instead. Relationships can turn tangled and dramatic, the kind of emotionally charged, ongoing trouble you might see in a long-running soap—complicated, persistent, and exhausting.
From the standpoint of the element created, while san he is very strong, it is not as powerful as san hui.