This is an introduction to the eight-sign zodiac called Kālachakra.

1      Introduction

Aṣṭadala Padma (Eight petal lotus) is the foundation of Hindu philosophy. It is based on the Kālachakra (wheel of time), which is composed of eight spokes and has the 28 constellations distributed in these spokes. Each of these spokes is in one of the cardinal or intermediate directions and is reckoned starting from the east and moving in the clockwise direction. Based on this we have the aṣṭadala padma and the aṣṭa-maṅgala  kriyā[1].