There would not be a tackle at the head of the sail between it and the halyard.. even if you wanted some power how are you going to adjust it? - and there's no room there in any event.
Is the mast down? Could it be the halyard is connected to the cunningham tackle for storage?
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)