What it means is that you go get a Marshall or the Sheriff and they remove the tenant, post the property while you change the locks. Further, if you make arrangements in advance, you pay for a truck and movers and you get the stuff out and into storage.
I recommend you move the tenant out on the spot. You do not need the hassle and possible real trouble of a tenant that comes back after the sheriff is gone and breaks in.
Do not try to remove the tenant...you get an officer to execute the eviction order. Go to the sheriff now and get it scheduled.
double check - it should be 10 days, not 15. AFTER the waiting period you go back to the magistrate and file for possession - that will cost you more $$$ and another 10ish day wait. You cannot go now to get it scheduled.