Guarding your heart is very important in this life. God says we should do this above all else.
Our heart in Scripture is used to describe the core of who we are. Our core or heart determines the course of our lives.
People often say that I really want to do this with all of my heart and we know they are really serious about something. Conversely, if they say my heart is not in it any more, then we know they are ready to move on.
So how do we guard our hearts? We need to fill it with good things like prayer, reading the Bible, fellowship with other Christians who build us up.
We also need to stay away from things that can wound or damage our hearts. We all have things, habits or people in our lives that we know are not good for us.
The key for us to guard our hearts is to move towards God and away from the harmful things. It is so vital if we are to be and all God wants and needs us to be.
So guard your heart above all things, it determones the course of your life.