Watch over your heart with all diligence, for from it flow the springs of life. Prov 4:23
"Heart in Proberbs regularly refers to the center of one's inner life and orientation to God, from which a person does all thinking, feeling, and choosing. Taking words of wisdom into the heart is vital, and wisdom's presence in the heart is worth guarding because out of the heart flow all the thoughts and words and choices of a person's life." - from the ESV Study Bible
"The heart commonly refers to the mind as the center of thinking and reason, but also includes the emotions, the will, and thus, the whole inner being. The heart is the depository of all wisdom and the source of whatever affects speech, sight, and conduct." - John Macarthur
If the state of our heart is so significant in living out the Christian life, how seriously should we take the call to watch over our hearts with diligence?
I've been contemplating the application of that command - any thoughts? What does it mean to watch over our hearts, and what are some practical ways that we can do this?