“Go to a happy place” is scriptural! Another, more scientific term for it is cognitive behavior therapy. The Bible’s way of saying it is varied, i.e. bring “every thought into captivity to the obedience of Christ,” or “Abide in Me,” or “be transformed by the renewing of your mind” to name a few. Basically, it is a training of your mind to think differently. In a spiritual sense, it is training your mind to be in harmony with the mind of Jesus. It’s not us doing anything, it’s us pulling our minds away from our natural thoughts and inclinations and placing everything on Christ–abiding in Him for everything. I like the way Oswald Chambers puts it–
“Abide in Me” –in intellectual matters, in money matters, in every one of the matters that make human life what it is. Our lives are not made up of only one neatly confined area.
Our Lord’s inner abiding was pure and unblemished. He was at home with God wherever His body was. He never chose His own circumstances, but was meek, submitting to His Father’s plans and directions for Him. Just think of how amazingly relaxed our Lord’s life was! But we tend to keep God at a fever pitch in our lives. We have none of the serenity of the life which is “hidden with Christ in God” (Col. 3:3).
In closing–the more we hold our minds captive in Jesus (throwing every stress, joy, frustration, sorrow, etc. back onto him), the freer we are to live in serenity and peace. The more heavenly life becomes on earth–even when it’s dark.