Yammisven is a god.

It takes the form of a very long, awesome frog.

Yammisven created dark matter five thousand years ago.

If you believe in Yammisven, it will approve.

If you do not believe in Yammisven, it will insist you be burnt at the stake.

Yammisven's most sacred site is Altata in Mexico.

Yammisven's Holy Commandments

1. Always prostrate yourself in the presence of your elders.

2. Never think ill of sick tapirs.

3. Do not utter prayers while touching tin.

4. Never carve symbols of nebulae into wood.

5. Always share aubergines with strangers, but never with great tits.