Prayer is a very important part of the Christian life, it's how talk to God and tell Him about our fears and concerns, how we bring our praise to Him, how we share joys and give thanks to Him, how we repent of our sin and say we are sorry for offending Him.
The Lord Jesus encouraged his disciples to pray and gave them an example of how we should pray in Matthew's Gospel chapter 6 verses 5 to 15.
'And when you pray, do not be like the hypocrites, for they love to pray standing in the synagogues and on the street corners to be seen by others. Truly I tell you, they have received their reward in full. But when you pray, go into your room, close the door and pray to your Father, who is unseen. Then your Father, who sees what is done in secret, will reward you. And when you pray, do not keep on babbling like pagans, for they think they will be heard because of their many words. Do not be like them, for your Father knows what you need before you ask him. This, then, is how you should pray:
“Our Father in heaven,
hallowed be your name,
your kingdom come,
your will be done,
on earth as it is in heaven.
Give us today our daily bread.
And forgive us our debts,
as we also have forgiven our debtors.
And lead us not into temptation,
but deliver us from the evil one.”
For if you forgive other people when they sin against you, your heavenly Father will also forgive you. But if you do not forgive others their sins, your Father will not forgive your sins.'
God wants to hear our prayers, because He created us, cares for us, provides for us and wants the best for us.