The eight Parkha trigrams

Eight trigrams of the Chinese I Ching are also used in Byung-rtsis, but never as 64 hexagrams.

Parkhas symbolise the eight elements, which in this system are:

four seasons and four cardinals

The name "Parkha" comes from the Chinese and means number eight.

Lag rTsis hand calculation

A Tibetan astrologer uses his/her own hand to calculate the Parkha in relation to each other.