Ceiling Pendant Light

I have managed to find a beautiful 30’s light shade which is like a bowl shape with 3 chains which obviously have to be fitted somehow to the ceiling around the bit where the normal pendant hangs down. I am at a loss to work out how this is done. Surely if I just screw in 3 little hooks a) I could damage a wire and b) the shade may be too heavy and pull half the ceiling down.

I have the shade and the original three chains with decorative hooks on the ends but what do I put in the ceiling?

You need either a pattress or a ceiling rose.
You can make circular pattress from wood or MDF. Make a hole in the centre large enough to thread the existing cable though: about 3/8 to 1/2 inch.
Remove the existing light fitting and locate the ceiling joist by probing next to the cable with a thin screwdriver, then mark its direction with a pencil.
You will need to screw the pattress to the joist, having first passed the cable through. When satisfied that it is sound, you can connect the light fitting up again, then screw the hooks for the chains into the pattress.
If you already have a ceiling rose, it might well be plaster. Plaster is more of a problem because it tends to crumble when screws are inserted. In this case you will need screws long enough to go right through the rose and into the joist. And you will need to know where the joist IS!