It should be a comfort, if you are a Christian, to know that God hears you. The question is—do you have faith enough to believe it? I encounter people all the time who say they are Christians but who are weak in the knees when it comes to believing God for what they need. They don't have confidence to approach God's throne of grace themselves so they ask others to do it for them— "Please pray for me." No question intercessory prayer is a powerful ally, but our personal prayers are what's needed to move God to act on our behalf. The Bible clearly states in James 5:16—
The earnest (heartfelt, continued) prayer of a righteous man makes tremendous power available [dynamic in its working].—AMPWith that kind of power right at our fingertips, prayer should be automatic in every situation we face. Nevertheless, God is gracious to answer our unspoken prayers as well as the prayers of others for us. Sometimes, when someone experiences an instant or miraculous answer to prayer, you know without a doubt that it came from God. At other times, He may delay the answer or give a partial answer so that we might labor in prayer until the answer comes.
God knows everything about us before we even open our mouths to tell him. He wouldn't be God if He didn't. He's the omniscient, omnipotent (all-knowing, all powerful) God, nothing is hidden from His sight. David wrote in Psalm 139:2—
I’m an open book to you; even from a distance, you know what I’m thinking.So, you ask, why pray if God knows everything? One reason is because God commands us to "pray without ceasing"... because this is the way God wants those who belong to Christ Jesus to live (1 Thessalonians 5:16). The other reason is our prayers unleash God's power into the situation. Angels spring into action at God's command to rescue believing Christians who cry out to Him. That's what prayer does. Here's a simple analogy: You have a car at your disposal to take you anywhere you want to go, at anytime. You have the keys to the car. But if you don't put them in the ignition and start the car, it will never do what it's suppose to do. It's the same with prayer—it works best when you use it.
You know when I leave and when I get back; I’m never out of your sight.
You know everything I’m going to say before I start the first sentence.
A final thought, if God is ever present in a believer's life, then the reverse must also be true—the believer is always in God's presence. Now that's reason to rejoice and pray.
Note: If you are unsure of or want a closer relationship with the God of the Bible, you'll find help at Peace with God.