"Above all else, guard your heart, for everything you do flows from it."
In this fallen world we face many temptations, perils, and evils. Because of this, we must be careful not to fall into any of these things. It's hard because we are human and we make mistakes. It's shameful, hurtful, and can downright just make us feel miserable. BUT we can alway come back to God with confidence, because he not only forgives, but FORGETS.
To guard our heart, means to guard ourselves from the works of the flesh (Galatians 5:19-21). Just a little bit of anger, a little bit of jealously, or a little bit of hate can corrupt our entire being. We must be careful to not let anything, not even a sliver, come into our being.
How can this be accomplished? We can accomplish this by practicing the fruits of the Spirit everyday. Love, joy, peace, forbearance, kindness, goodness, faithfulness, gentleness, and self-control. All these fruits will keep our spiritual hearts healthy and happy with the joy of our God. :)