In a Bazi chart, the Earthly Branch of the Day Pillar is called the 'Day Branch,' also known as the Spouse Palace—the most important coordinate for assessing marriage. A metaphysician first examines which Ten God and Five Element reside in the Spouse Palace, then interprets its interactions with other pillars. If the Spouse Palace experiences a 'clash' (e.g., the Day Branch clashes with another branch like Zi-Wu or Mao-You), it often signals turbulence in marriage—frequent separation, differing opinions, or tension. If the Spouse Palace is 'punished' or 'harmed,' this may reflect friction and wear in the relationship. Conversely, if the Spouse Palace forms a combination or receives support from a favorable element, it is generally seen as a sign of harmony and stability. However, a single clash does not equal divorce risk—only a comprehensive reading of the entire chart's strength, pattern, and preferences can avoid a biased conclusion.

Beyond the Spouse Palace, the 'Spouse Star' is another key reference for divorce risk in Bazi. Traditionally, the Wealth Star (financial element) represents a wife for men, while the Officer Star (Zheng Guan) represents a husband for women. Metaphysicians observe whether the Spouse Star is pure and strong, or if it is merged, damaged, or overcome. For example, in a woman's chart, severely damaged Officer Stars or those contested by peers often indicate emotional ups and downs and indecision in partner choice. In a man's chart, excessive or mixed Wealth Stars suggests similar instability. Additionally, when the chart has overly strong Peers that suppress the Wealth Star, or strong Hurting Officer that suppresses the Officer Star, these are also considered unstable marital structures. However, these are only tendencies—real relationship quality heavily depends on personality, communication, and effort. Bazi offers a lens for self-awareness, not an unchangeable verdict.

Marriage is not static—a Bazi chart's Major Luck Cycles (Da Yun) and Annual Luck (Liu Nian) shift over time, affecting the original balance. When a particular annual or major luck period activates a clash to the Spouse Palace, merges the Spouse Star, or floods the chart with unfavorable elements, it is often interpreted as a phase of emotional volatility and greater tests—the period metaphysicians call a heightened 'divorce risk.' Yet in traditional culture, 'crisis' also implies 'opportunity'—it reminds the individual to communicate more carefully and avoid impulsive decisions during emotionally charged times. Readers are encouraged to see such information as a chance for early awareness and mindset adjustment, not passive waiting. After all, the longevity of marriage rests on mutual understanding, tolerance, and joint effort; Bazi remains a cultural tool for supplementary insight.