Oh, that's an easy one: (n.b. - the following is NOT a violation of secrecy in Wisconsin. If it is in your jurisdiction, or if you are concerned that it might be, please do not read it.)
In one of the 1st degree lectures, you were told that in every "Lodge there is, or ought to be ... a certain Point within a Circle". Go find and/or remember that lecture segment (p 54 of the Blue Book). The arms of your compass should be long enough so that the circle they describe touches upon St. J the B, St. J the E, and the VSL. Now ... why?
You were also told, at the end of that same lecture (p. 58), that:
"There is nothing freer than chalk ... Nothing more fervent than charcoal ... Nothing more zealous than clay". These are also allusions to the items touched upon "In passing around this circle": Everything is in the VSL, but there is also St. J the B (zealousness) and St. J the E (fervency).
Okay, so where is freedom? Freedom is the circle thus described (the length of the arms of your compasses). How long are the arms? Long enough to touch on the limits of your own zealousness, fervency, and the rules set down in the VSL. But wait, that sounds like a limit, not freedom! YOU ARE PERFECTLY FREE TO STAY WITHIN THE CIRCLE OR STEP OUTSIDE OF IT. How will anyone but YOU know? After all, it's your fervency, your zeal and your understanding of the VSL that limit your circle. It's sorta like calculus that way.