Being in the middle of the road means that everyone passing by watches your comings and goings. (Ixtlan, 92)

To be inaccessible means that you touch the world around you sparingly.
To worry is to become accessible, unwittingly accessible. And once you worry you cling to anything out of desperation. And once you cling you are bound to get exhausted or to exhaust whoever or whatever you are clinging to.
I’ve told you already that to be inaccessible does mean to hide or to be secretive. It doesn’t mean that you cannot deal with people either.
[A hunter] is inaccessible because he is not squeezing his world out of shape. He taps it lightly, stays for as long as he needs to, and then swiftly moving away leaving hardly a mark.