
What is "Spirituality" and Why Would It Cause Stress?
What does it mean to have spiritual stress? How do we meet our spiritual needs?
How do you know if you are spiritual?
I  live in the southeast region of the United States.  For the most part,  this area is very Protestant Christian.  Very.  And many of my  co-citizens follow a strict path of Christianity.  But, I would offer,  it is not always a spiritual experience for them.
Religion  and spirituality CAN be found together.  The litmus test is whether you  find yourself with an emotional (or metaphorical) lump in your throat.   'Are you moved?' is the question on the table.
If you  find comfort in your religious tradition, are following this religion  because your parents did, believe it is the right thing to do because  you have children...well...you are not meeting this fourth human need.  You are meeting something important, but it is not  spirituality...probably.
I will not provide links here, or  suggest sites for you to explore my own spiritual path.  That is your  business.  But I will caution you about misunderstanding this need and  believing you are filling it, every Sunday at 11am, and still finding  yourself stressed and unfulfilled.
It isn't a judgment,  it is about what will work and what will not.  Surely anyone's god would  want you to follow the laws of the Universe that it/he/she created? 
But maybe of tantamount importance to me, and my work, is that you understand that your relationship with yourself is found here,  in this spiritual pursuit.  You and Your God are found in the same  space.  How close you are with yourself, how much you trust yourself,  how you forgive yourself, how you fortify yourself...are all found in  this fourth need.
So, a very private journey.  And one  that cannot be provided by a list of bullets or an article.  My only  instruction is that you recognize that dogma and discipline are NOT the  tools to be used here, in this particular section. I would offer that  this need can be met in church, but may also be met through  inspirational reading, meditation, yoga, walks in nature and is as  varied as we are. The only requirement is that you be:
Moved.
Changed instantly.
In awe.
These are the measures for meeting your spiritual needs.
See more on the "Four Human Needs"