What should I know first for the introduction of geomantic omen? Learn what one after another.

First of all, we should know some basic things, such as Tai Chi, Yin and Yang, Four Elephants, Five Elements, Seven Stars, Eight Diagrams and nine planets.

These basic terms should be known.

That depends on whether you know Yin Zhai Feng Shui or Yang Zhai Feng Shui. These are still very different.

For example, twenty-four mountains, twenty-eight nights, nine planets and eight gates in December, and so on!

I suggest you know the basics first! Good foundation, everything is better!

I hope it will help your study!