I know that someone will suggest Rihab since it is also used but I don't prefer that since those who do not know Arabic will need a translation for the word.
Here is an example of how it is used:
Whoever lives in the vastness of faith, holds fast to its strong rope and follows its illuminating light
http://alminbar.com/khutbaheng/2220.htm
http://www.almaany.com/home.php?language=arabic&word=رحاب&ca...