The purpose of every believer.
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God has created each one of us by placing in our hearts the thirst and need to know Him more each day.
17 These things Jesus spoke, and lifting up his eyes to heaven, he said: Father, the hour has come; glorify your Son, that your Son also may glorify you; 2 as you have given him power over all flesh, that he should give eternal life to as many as you have given him. 3 And this is eternal life, that they may know you, the only true God, and Jesus Christ whom you have sent.
John 17:1-3
Not only believers, but all of humanity does very nice and good things for God. There are even times when those "things" we do tend to be more important than God himself. Remember that Hosea says that God desires mercy and knowledge and does not want sacrifices or holocausts. This means that God wants our attention, our gaze on him more than anything else.
There are brothers who unfortunately go beyond us, they do not take the next step, they only limit themselves to a specific work or a simple occasional reading of the Bible. They do not obey the spiritual desires of spending time in prayer or getting to know God more through his word. They generally "worship" because they only have to do so. This may sound very familiar to you. Remember that the relationship with God involves commitment and time. This is extremely gratifying!
14 But whoever drinks the water that I will give him will never thirst. but the water that I will give him will become in him a spring of water welling up to eternal life.
John 4:14
God has placed in us a thirst that can only be quenched by Him, the Apostle Paul gives us an example of this when he says that everything that was once gain he now considers loss for the love of the Lord.
7 But whatever things were gain to me, those I now consider loss for the love of Christ.
Philippians 3:7