I've just dug out a diagram of a 'Provisional late Neolithic Cosmological Scheme' by Timothy Darvill. It goes something like this...well exactly like this;
North
Earth, cold
South
Sky, warm
West
Sunset, death, burial places, darkness, winter, fire.
East
Sunrise, life, settlement, light, summer.
Center
Hearth, transformation.
It kinda makes sense.