Do you believe that "faith" is only a religious process, as I use that word in my thoughts and conversations, and I'm not sure if it has just lingered from my "catholic" childhood, or? 
I havefaith in many things.
Not sure if "in the eyes of the religious world" I'm allowed to use that word in my"real" life.
I wouldn't obey their wishes anyway, so why do I ask that, I "dunno." 
		
		
	 
I don't think "faith" is an exclusive word to the Church and/or its membership.Its proper dictionary meaning is as follows:
Main Entry:	
1faith 
	
Pronunciation:	'fAth
Function:	
noun
Inflected Form(s):	
plural faiths 
	
 /'fAths, 
sometimes 'fA[
th]z/
Etymology:	Middle English 
feith, from Anglo-French 
feid, fei, from Latin 
fides; akin to Latin 
fidere to trust  --
1 a : allegiance to duty or a person  
: [SIZE=-1]LOYALTY[/SIZE] b  (1) 
: fidelity to one's promises  (2) 
: sincerity of intentions
2 a  (1) 
: belief and trust in and loyalty to God  (2) 
: belief in the traditional doctrines of a religion 
b  (1) 
: firm belief in something for which there is no proof  (2) 
: complete trust
3 : something that is believed especially with strong conviction; 
especially : a system of religious beliefs   <the Protestant 
faith>
synonym see 
[SIZE=-1]BELIEF[/SIZE] 
- 
on faith : without question   <took everything he said 
on faith>
So with all that, we can have faith, or loyalty, to many things, including one another.