First function of mythology is to reconcile consiousness to pre-conditions of its own existance.that is to say,to the nature of life.
Life lives on life.
its a first law of nature.
I will eat you ,now you eat me.
if you deny the first law.
you will exile from the eaden like adam and eve.
There is a wonderful verse in the Rig Veda that says,”One the tree 🎄-thats the tree of life,the tree of your own life-there are two bird ,fast friends.one eat the fruit of the tree.and another not eating,watches.Now one is eating the fruit of tree is killing fruit.Life lives on life,you eat a life that can’t run away.

Same thing in hindusism.
A monster came to Lord shiva,and said I want your wife as mistress.
Shiva was indignant,so he simply open his third eyes.,and lightning bolt struck on earth.there was smoke and fire.when smoke cleared.another monster,lean,with hair like lion flowing to four direction.,The first monster saw that the lean monster was about to eat him up.what do you do in that situation.Traditionally advice says to throw yourself on your mercy.
Do the monster said ,Shiva !I throw myself on your mercy.
So shiva said ,I yield my mercy.don’t eat him.then lean monster said what do i do.I am hungry, you made me hungry to eat this guy.and shiva said __eat yourself.
So the lean monster started eating on his feet and came chomping up-this is the emage of life living on life.

Siva say to glory face,He who will not bow to you is unworthy to come to me.

Same thing in tribals seen.
A snake feagure found .which eating his own tail.
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Jesus secrife his life.
his body is food of people who are going to die.So he secrife to save us,to save himself.
jesus and other people are not many but one.
this is the mistical realization.
crist whithin all being.

Eg.
if someone going to injured or loose.
your first spontenious response is to save him.even you put your life on risk.
just like you are going to die.
means you and other people are one .Other suffering is also inside you.crist evoke the compassion whithin all.and save the society which losses it.
The first function of mythology is the mystical function,realizing what a wonder universe is, and what a wonder you are.

Myth opens the world to the dimension of mystery,to the realisation of the mystery that underlies all form.If mystery is manifest through all things ,the universe becomes,as it were,a holy picture.You are always addressing the transcendent mystery through the condition of your actual world.
The second is a cosmological dimension, the dimension with which science is concerned-showing you what the shape of the universe is, but showing it in such a way that the mystery again comes through. Today we tend to think that scientists have all the answers. But the great ones tell us, “No, we haven’t got all the answers. We’re telling you how it works-but what is it?” You strike a match, what’s fire? You can tell me about oxidation, but that doesn’t tell me a thing.

The third function is the sociological one-supporting and validating a certain social order. And here’s where the myths vary enormously from place to place. You can have a whole mythology for polygamy, a whole mythology for monogamy. Ei- ther one’s okay. It depends on where you are. It is this sociological function of myth that has taken over in our world-and it is out of date.
The forth function of mythology that is the pedagogical function,of how to live a human lifetime under any circumstances,myth can teach you that.