cakephp - Unable to retrieve session in controller

I am having problems with cakephp session. I created a session in my controller (users/home) then I attempted to retrieve it in another controller, but I wasn't able to get it.

Also, I created another session in another controller and was unable to retrieve it in the users controller.

I would like to know how to stop this behaviour.

Thanks

Note: I use the session component.

Make sure you have $components = array('Session'); (and any other app wide components) in your AppController.

http://book.cakephp.org/view/1311/Methods