I see it as you cannot play the game without a token or game piece, and the LN is that, especially for the Public, yet the board has two sides, yeah?

So...as above, so below, and if you play on the Private side, it is the obverse/reverse side of the Public, and one can buy, sell, or trade - to me labels of exchange.

I do notice the "own" is not in the phrase, is it telling by omission?