How do parables communicate the inspired word of God? I'm curious as to know how parables can communicate the inspired word of God. Other literary forms in the bible such as myths and psalms are able to somehow communicate it but I want to know how parables can communicate it as well. I'd like to know specifically how the parable of the sower can communicate the inspired word of God.
The parables of Jesus do not 'communicate the inspired word of God'. They, themselves are the inspired word of God. For God - that is to say the Son of God - actually spoke them on earth from his own lips.
If when one hears (or reads) the parable, if one does not perceive and hear God speaking to one's own soul then there is an explanation :
Jesus said :

Unto you it is given to know the mystery of the kingdom of God: but unto them that are without, all these things are done in parables:
That seeing they may see, and not perceive; and hearing they may hear, and not understand; lest at any time they should be converted, and their sins should be forgiven them.
Mark 4: 11 and 12 [KJV]

Some (who are within) will understand, and believe and will obey the concept of the parable.
Some (who are without) will see, yet not perceive ; hear and not understand.
Jesus also said :

And he said unto them, Know ye not this parable? and how then will ye know all parables?
Mark 4:13 [KJV]

The parable he speaks of is the parable of the sower sowing seed. Some fell in fruitful ground and flourished. Some fell on the wayside, in stony ground, among thorns - and bore no fruit.
If one does not perceive the meaning of this, first parable, one will not appreciate any other parable.
This first parable is about receiving the word of God into the heart in such a way that it flourishes there.
But if the word of God does not penetrate, and flourish within the heart, then there will be no perception or understanding of any of the parables which Jesus spoke.