The reason muslims slaughter a goat or sheep for Eid ul-Adha is basically to remember the day when God asked the Prophet Abraham to sacrifice his son. However God was testing his Prophet's obedience and even though Abraham agreed to do it, God had recieved the proof He needed and later on told him to instead sacrifice a sheep.
Gardens of Eden? Ok maybe not...
Now since Sweden doesn't allow ritual slaughtering or Halal slaughtering for that matter, I won't be giving you any meat this year (a reason to start lobbying the law makers?). Don't be alarmed if you happen to hear strange noises coming from your Pakistani neighbour, he's probably just slaughtering some sheep and chicken in his garden.
To all muslims around the world, Eid Mubarak! Happy Eid!