What does the following recipe instruction mean?

Cook over medium heat stirring constantly. Cook until candy turns away from the side of pan. Add nuts and vanilla. Spread in buttered dish.
I am trying to make candy. I've heard of soft ball and hard ball and even own a cany thermometer. I'm a novice cook, but I try.

Praline candy, still soft after refridgerating 24 hours?

Tried to make pecan pralines, without thermometer. Cooked and boiled for recommended 16 minutes. Poured onto wax paper. Refrigerated 24 hours. Candy like caramel.Is there a way to hardened it now?