new eyes

But if from there you seek the Lord your God, you will find him if you look for him with all your heart and with all your soul. Deut 4:29

I have read this verse before and only thought it said to look for God diligently. Look hard, work hard. The other day I read this and saw it differently. It said to look with your heart and soul. How do you do that? Certainly I cannot see Him with my eyes. But how do you see with your heart?