Talking about "Yuan" on New Year's Day

The earliest Chinese dictionary "Erya" said: "Yuan, the head." That is to say, "Yuan" refers to the head. How can the "Yuan" in the upper part of "two" and lower part of "er" represent the head? Nothing like it.

It turns out that the lower part of "Yuan" in oracle bone inscriptions and bronze inscriptions was not "er", but "person" standing sideways, and it was written as "er" after the Han Li. The upper part was originally not "two", but "upper" of "upper and lower". "Shang" in oracle bone inscriptions is to add a short horizontal line or dot to the upper part of a horizontal line or arc to indicate that the position is on the top. Yuan looks like someone high up.