Translating "關原", acupuncture point REN-4

Explanation of the point name

There are a few translation options here. Before, I had 'Barrier Gate to the Sources,' but there is a problem with that. Translating it as such would be similar to TB-5 外關 'Barrier Gate to the Outside' and P-6 內關 'Barrier Gate to the Inside.' However, the order of the two characters is the other way around there, with 關 as the second character, rather than the first. So, that translation, and variations of it, are probably not correct.

To figure out the right meaning, I referred to my I Ching translation, where 原 is in hexagram 8:

原筮元永貞

'The primary oracle of the first day will always persist.'

It's nice that the character 元 is there too, as these need to be distinguishable from each other. I have 'primary' there for 原, and that makes sense here too. The primary barrier gate could refer to the birth canal, the first and main barrier gate that a person passes through when getting into the world. This points affects it.