A unknown symbol in MS word dispalying at end of every line

If you have been experiencing trouble in Ms office word with display of symbols  like this- ¶  and others in Ms-office 2007, Don't worry. 
Nothing happened.
Just a setting in word has modified.
Actual reason is, if the feature called 'Non-printing characters' is set to allow then those symbols are displayed.
In general the above symbol refers to paragraph break.


The option short cut is Shift+Control+8. 
By pressing the combination of key you can turn the feature on/off.