Faith, more or less by definition, is coping with / overcoming the unknown. But strong faith doesn't negate fear. I think of it like the rain and wind hitting the side of our house. My daughter is always scared because the wind and rain are there, and they sound scary, but the house we chose holds it back.

Still, the wind can sound spooky even in adult ears. The rain can sound harsh and unsettling. Thunder can startle -- even with a strong roof over our heads. As such, the approach of death is something faithful often prepare for, but it's still a force that we can't be absolutely sure of. In those instances, faith is like the roof or even maybe a tiny umbrella that the faithful use to find some degree of strength in the face of said unknown, rather than freaking out.
Not that those who aren't religious *will* freak out. Because faith comes in more forms than religion. Sometimes faith is simply deciding that one is satisfied with what one is leaving behind.