"For I know the plans I have for you, declares the Lord, plans to prosper you and not to harm you, plans to give you hope and a future. Then you will call on me and come and pray to me, and I will listen to you. You will seek me and find me when you seek me with all your heart."
According to a commentary on this text, implied in these passages is a quest for God that includes a level of intensity beyond what might be termed ordinary prayer. "Search" and "with all your heart" suggests an earnestness of desperation. It's a close pursuit of a desired objective. It also implies diligence in the searching process - "seek" after Him - God's emphasis on intensity and diligence in prayer.
We're told that we're selfish if we pray a whole lot for ourselves. Which I think is true, to a line. This text seems to say something else. Here it says God has PLANS to give us a future and a hope. Then right after that he says, seek me, you will find me, pray, I will listen. You don't seek something you already have, right? So I think this is saying that if I don't know what God's PLANS are, it's okay to seek him out about it. And apparently, it's okay to desperately seek him out. Like, hey God, I know you said you have good plans, but I don't really know what they are yet, and I really need some direction here. It's okay to cry out to him, to ask in earnest, and then expect him to answer! He says he will listen to you, and you will find what you're searching for.
Are you in need of God's direction for your life? Desperately cry out to him, pray to him, seek him. It's okay, don't feel guilty. He wants you to come to him, and he desires that you know the good plans he has for your life.