It starts in the mind. Not the brain. Our two hemispheres are separate and except for the corpus callosum they're gonna stay that way. I'm talking about the separation in our thinking regarding our "on times" and our "off times". You know, those times throughout our day and our life where we're reminded (presumably by the Holy Spirit) of God's presence and existence and realize that, "Dear Lord!—I've gone *checks watch* an hour without thinking of or talking to God!". As James says "these things ought not so to be" (James 3:10). Paul tells us that we should be "instant in season and out of season" (2 Timothy 4:2). The Holy Spirit is here to help us with this. David pleaded to God in Psalm 86 (vs.11): "Unite my heart to fear Thy name". No more of this "Double-mindedness" as James puts it (1:8).
Imagine you had a flower—a daisy. And each petal you plucked meant God loved you—or not. Now, take that imagination and cast it down (see 2 Corinthians 10:5) because that's exactly what we do when we "turn off" and forget that God loves us. This vacillation should have no place in us. I'm guilty of this.
God loves me. Period. This is the "anchor of our soul" (see Hebrews 6:19). The sun is always shining whether it's cloudy or whether it's midnight. This is absolute truth ladies and gentlemen. And I'm not going to know this and appropriate this unless I actively think of, thank for and dwell on the fact that God loves me.
Kierkegaard said that "purity of heart is to will one thing." I would add to that by saying (if I may) that "unity of mind is to realize, all the time, that God loves us." This, too is perpetual motion.