Use of "se"?

Use of "se"?
 

Does anyone know of a thread that talks about the use of the word "se"? The book I have has me a little confused. I wouldn't feel comfortable trying to use the word right now. Thanks

Here's a few threads that may be of some help. If you have any additional questions, feel free to ask :)

Threads on reflexive verbs and the use of "se".
http://forums.tomisimo.org/showthread.php?t=244
http://forums.tomisimo.org/showthread.php?t=677
http://forums.tomisimo.org/showthread.php?t=701
http://forums.tomisimo.org/showthread.php?t=376