What's your diet?  We all eat and drink because it's what sustains our bodies physically.  In other words, we eat to live; all of our nutrients come from a living thing. Yet our bodies will grow hungry again. Is your diet what the world gives, food like chasing the 'American dream', accumulating wealth, climbing the corporate ladder, keeping up with the Jones'?  That's all junk food. The spiritual realm needs nutrients too.  We injest the sacrifice of Christ to sustain us; it builds spiritual muscle, bone and sinew.   When we are filled with the Word of God and grow spiritually, we are satisfied.