Traditionally children should sleep with their head towards the east as this helps with mental development and studies. Adults are generally recommended to sleep with their heads towards the south.

Sleeping with the head towards the north is considered the worst and absolutely bad for a person and should be avoided at all costs.

The reason for this is that when the head is placed towards the south, a harmony is created between the body and the earth’s north/south pole currents. When the head is faced to the north, the opposite occurs.

First of all, I really don’t appreciate the way the author introduces the Shulchan Aruch. It obviously doesn’t include every single piece of halacha, because halacha is a continuously developing body of laws that doesn’t depend on a single source. “Accepted by all streams of Judaism”?! If you have any idea of what Judaism is, you know that nothing is accepted by all streams of Judaism, and certainly not a book! The statement that Shulchan Aruch “has been true from the time it was published until today” I simply don’t understand. Are there books that just stop being “true” at some point?

About the similarity, it’s important to keep in mind the well-known fact that throughout history, with the exclusion of the last couple of centuries, great rabbis were usually also great scientists and most often great physicians. They were always fascinated by any influence of nature on man, much like in the Chinese culture. I’m not sure that this interest could be compared with Feng Shui specifically, but it’s definitely true that many times in history, different people in different places thought of the same things at the same time. Jewish and Chinese civilizations certainly were not cultivated on an island.