One of the most popular verses in the Bible is Jeremiah 29:11 "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."  It's a great verse!  Full or encouragement and hope.  But what I love even more is what comes directly after that verse.  

"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."  Jeremiah 29:12-13