Sapta Dhatu (Seven Tissues)

Definition

The Sapta Dhatu are the seven primary bodily tissues of Ayurvedic physiology, and Jyotish maps each to one of the seven grahas (planets) from the Sun to Saturn for reading the body. The Brihat Parashara Hora Shastra assigns, in order from the Sun onward, bones, blood, marrow, skin, fat, semen, and muscles. Sources differ on the exact tissue-to-planet pairing, especially for Mars and Saturn, but the framework lets a planet point you toward the part of the body where an ailment sits.

In Tradition

The classical Jyotish texts treat the seven tissues as a bridge between the chart and the body: a graha's strength or affliction is read as the safety or affliction of its matching dhatu (tissue). Both the Brihat Parashara Hora Shastra and Prasna Marga hold that the planet governing an afflicted tissue marks where bodily disorder arises — and, in Prasna Marga, where fatal disease arises.

In Practice

A jyotishi (Vedic astrologer) uses the Sapta Dhatu to trace an ailment back to its bodily site through a planet's condition. The Brihat Parashara Hora Shastra ties each tissue to a planet, so an afflicted Sun, for instance, predisposes you to bone disorders. Prasna Marga turns the same scheme to death-cause analysis, holding that the graha governing an afflicted dhatu marks the tissue from which fatal disease arises. Larsen reads the tissues from a planet's placement in, or Rashi drishti (sign aspect) upon, the second house; because Mercury guards the body through both the skin and the immune system, he notes that an afflicted Mercury can point to trouble in the immune system, the red and white blood cells, hormones, or weight. Authors diverge on assignments: Prasna Marga gives marrow (majja) to Mars and nervous material to Saturn, while Larsen's Table 71 gives nerves to Mars and muscles to Saturn.

Historical Origin

The scheme appears in the Brihat Parashara Hora Shastra, Chapter 3, in R. Santhanam's translation, and in Prasna Marga, Part I, Chapter XI, in the translation and notes of B.V. Raman. Larsen's Jyotisha Fundamentals, Table 71, restates it for modern practice, adapting the classical tissue-to-graha mapping for medical reading.

Further Reading

• Santhanam, Brihat Parashara Hora Shastra
• B.V. Raman, Prasna Marga
• Larsen, Jyotisha Fundamentals