Xem is a god.

It takes the form of a two thousand metre long, passionate centaur.

Xem created the Sunflower Galaxy four million years ago.

If you believe in Xem, it will be very happy.

If you do not believe in Xem, it will destroy your favourite planet.

Xem's most sacred site is Gassin in France.

Xem's Holy Commandments

1. Do not chant in public.

2. Paint representations of comets on the walls of your dwelling place in purple.

3. Always obey Xem's priests.

4. Do not drink water in mauve rooms.

5. Never talk about gravity.