It seems to me that Myths exist to put the mind at ease. It substitutes as reason for phenomena like these:
Why thunder booms
Why lightning strikes
Why the sun is gone at night
They ease our questions lending fears and banish out our fright.

Myths give life to many Gods
Who's lives compared to ours are odd
Some bring the sun to sky in day
Some ferri souls who've passed away
Some tend the earth, whom we call Mother
Some far more fair than any other

You ask me can these myths be true?
To decide my friend, that's up to you.