Question about log entries

["Knute Johnson" <knute frazmtn com>]

I really don't have a good grasp on how selinux works so simple 
explanations will be better.  This showed up in my log this morning.  
What would generate this sort of an entry?

Thanks,

knute...

--------------------- Selinux Audit Begin ------------------------ 

 *** Denials ***
    user_u system_u (file): 48 times
    user_u user_u (process): 1 times

 ---------------------- Selinux Audit End ------------------------- 

-- 
Knute Johnson
Molon Labe...