Comfort or happiness?

Ask yourself a question.
Are you happy?
Are you comfortable?
Are you comfortable as well as happy?
Are you neither comfortable, nor happy?
Several times, we do not even know if we are really happy or comfortable. We get so attached to the comforts of life that we forget being happy. 
e.g. 
You love the comfort of your known set up. You know if you step out and explore the world, you may feel happier. However, you are too scared of loosing out on certain known comforts that your house hold set up offers. 
You keep postponing your travel, outings, preferring to be at the same place most of the time. 
You may not even know that your known set up gives you comfort and not necessarily happiness!
If at all you find yourself struggling to choose between the two, what is your next step? 
How will you deal with this situation?
Figure out the answer and please share with us.
Looking forward to read your comments, 
Lots of love,
Aatmn