TL;DR: In Tử Vi Đẩu Số, Lực Sĩ belongs to the supporting star group, representing action capacity, effort, and strength. It is placed by the Bác Sĩ cycle starting from the Lộc Tồn palace and is classified among auspicious stars. Lực Sĩ paired with Tuế Phá turns unconventional ideas into concrete action, especially when positioned in the Thân or Quan Lộc palace.

What is the Lực Sĩ star in Tử Vi?
In Tử Vi Đẩu Số, Lực Sĩ belongs to the supporting star group, representing strength, effort, and action capacity. It is not a main star, nor is it among the strong malefic stars like Kình Dương or Đà La; it belongs to the supporting star system, playing a supplementary role to the main stars on the chart.
According to the book Đẩu số tinh thành by author Thiên Hỏa Đồng Nhân, Lực Sĩ is one of the twelve stars in the Bác Sĩ cycle, placed by a fixed rule based on the position of Lộc Tồn. Specifically, the Bác Sĩ cycle consists of twelve stars: Bác Sĩ, Lực Sĩ, Thanh Long, Tiểu Hao, Tướng Quân, Tấu Thư, Phi Liêm, Hỉ Thần, Bệnh Phù, Đại Hao, Phục Binh, Quan Phù. The placement method depends on gender and the yin-yang polarity of the birth year: yang male and yin female are placed clockwise, while yin male and yang female are placed counterclockwise.
In the auspicious-inauspicious classification of Đẩu số tinh thành, Lực Sĩ belongs to the auspicious and benevolent star group, together with Bác Sĩ, Thanh Long, Tướng Quân, Tấu Thư, and Hỉ Thần. This shows that Lực Sĩ carries a positive meaning, governing support and enhancement of the native's action capacity.
What is the mechanism and operating principle of Lực Sĩ?
Lực Sĩ operates on a supplementary principle, meaning it does not create results itself but strengthens other stars in the same palace or in the triangular combination. When it shares a palace with action-oriented stars such as Kình Dương, Tuế Phá, or Thất Sát, Lực Sĩ adds energy to turn ideas into reality.
According to the book Tử Vi kinh nghiệm quyển hạ, in a sample chart, Lực Sĩ is placed in the Thân palace, accompanied by Long Trì, Thiên Việt, and Thiên Tướng[1]. This position shows that Lực Sĩ often exerts strong effect when located in important palaces such as Mệnh, Thân, Quan Lộc, or Tài Bạch.
The operating mechanism of Lực Sĩ can be understood through its relationship with Tuế Phá. Tuế Phá governs unconventionality, the courage to think and act, but sometimes lacks patience. When accompanied by Lực Sĩ, Tuế Phá gains additional resources to carry out bold ideas. The book Tuyển tập bài viết Tử Vi chọn lọc số 17 describes this relationship as follows: Tuế Phá plays the role of the one who dares to think, while Lực Sĩ is the one who dares to act.
How does Lực Sĩ influence a chart?
The influence of Lực Sĩ depends on its position in the chart and the accompanying stars. When it occupies the Thân or Quan Lộc palace, Lực Sĩ provides support for the native to pursue goals that ordinary people consider difficult. The book Tuyển tập bài viết Tử Vi chọn lọc số 17 records a case of a male native born in 1964 whose Mệnh palace contains Tuế Phá and whose Thân palace contains Lực Sĩ. In childhood, this person was often considered difficult to discipline because he always acted contrary to instructions, but upon reaching adulthood, that very stubbornness became a factor helping him achieve success in the field of creative entrepreneurship.
However, it should be noted that this is a specific case recorded in the book, not a general rule for every chart containing Lực Sĩ. The book's author also emphasizes that if there is only Tuế Phá without Lực Sĩ, the native may merely be someone who likes to oppose without accomplishing anything concrete.
When Lực Sĩ accompanies Kình Dương, this combination creates a special pairing. The book Tuyển tập bài viết Tử Vi chọn lọc số 5 quotes an old verse: "When the Mệnh has Kình Dương, Lực Sĩ naturally accompanies it," implying that these two stars are always closely bound together on the chart. Boldness, daring to act, and daring to confront are traits brought by Kình Dương, while Lực Sĩ adds strength so that work is completed.
What are the common combinations of Lực Sĩ?
| Combination | Main meaning | Notes |
|---|---|---|
| Lực Sĩ + Tuế Phá | Turns unconventional ideas into concrete action | Strong when in Thân or Quan Lộc |
| Lực Sĩ + Kình Dương | Enhances action strength, but caution against impulsiveness | Old texts record the default pairing |
| Lực Sĩ + Tử Vi + Thiên Phủ | Supports business and trade careers | Quoted from an old verse in the book |
| Lực Sĩ alone | Enhances personal effort, with weaker impact | Depends on other stars in the palace |
How is Lực Sĩ in relation to other stars?
The book Tuyển tập bài viết Tử Vi chọn lọc số 2 quotes an old verse: "Tử, Phủ, Kình dương tại cư thương, when the Mệnh has Tử Vi and Thiên Phủ in the same palace with Kình Dương and Lực Sĩ, one will be wealthy in trade". From this, it can be seen that the combination of Lực Sĩ, Tử Vi, Thiên Phủ, and Kình Dương is considered to bring decisiveness, strength, and high competitiveness, very suitable for a commercial environment.
Nevertheless, the book also notes that the appearance of stars such as Hóa Kỵ, Địa Không, and Địa Kiếp can create obstacles, forcing the native to be resilient and strategic to overcome them. This shows that Lực Sĩ is not the sole factor determining success, but must be assessed in the overall context of the chart.
What are the common misunderstandings about Lực Sĩ?
Beginners in Tử Vi often confuse the meanings of star combinations, especially when Lực Sĩ accompanies malefic stars like Kình Dương. The book Tuyển tập bài viết Tử Vi chọn lọc số 5 points out that beginners may look only at the aggressive nature of Kình Dương and overlook its interaction with Lực Sĩ, leading to misjudgments.
In reality, Lực Sĩ is not a star that causes misfortune. Its role is to supplement and enhance, not to create disaster. When interpreting, one should consider Lực Sĩ in relation to other stars, especially those governing action and willpower.
Gợi ý của Nhật Nguyệt: When interpreting a chart containing Lực Sĩ, one should consider its position in the triangular and cardinal palaces, and assess its interaction with action-oriented stars such as Kình Dương, Tuế Phá, or Thất Sát. Lực Sĩ is strongest when located in the Mệnh, Thân, Quan Lộc, or Tài Bạch palace, and often exerts clear effect during the native's adulthood.
Frequently asked questions
Is Lực Sĩ a good star?
According to the classification in Đẩu số tinh thành, Lực Sĩ belongs to the auspicious and benevolent star group. However, its specific meaning depends on its position and accompanying stars. When accompanied by good stars, Lực Sĩ enhances action capacity. When accompanied by bad stars, it can increase the severity of problems.
How is Lực Sĩ different from Kình Dương?
Kình Dương is a malefic star, governing boldness, sometimes impulsiveness, and can cause misfortune if fallen. Lực Sĩ is a supporting star, governing strength and effort, with a more supplementary nature. These two stars often accompany each other according to records in old texts, creating a combination that has both action strength and decisiveness.
Does Lực Sĩ affect wealth?
Lực Sĩ indirectly affects wealth by enhancing the native's action capacity and effort. When accompanied by wealth stars such as Vũ Khúc, Thiên Phủ, or Lộc Tồn, Lực Sĩ can support the building and accumulation of assets. However, the specific impact also depends on many other factors in the chart.