They're all ancient myths except Perseus hasn't been rewritten and changed as many times :)
Hebrews defines faith as the assurance of things hoped for, the conviction of things not seen Hebrews 11:1
"Now faith is the substance of things hoped for, the evidence of things not seen."
The fact is that everybody has faith of sorts.
Evolutionists have faith in their version of origins, subway passengers trust a train drivers skills, and children believe theyll get gifts at Christmas.
All of us are relying on something unseen.