Some people use visualization techniques to help them relax and not be anxious.
(Peaceful, new-age music is playing in the background): “Picture yourself standing in a field of vibrant green grass. In your mind’s eye, look up at the blue sky and billowy white clouds. Now cast your eyes below at the shimmering lake of water, mirroring the sky. Hear the burbles and gurgles of the nearby brook, etc.”
I have found this type of visualization to be helpful, but sometimes it doesn’t work so well for me. I can experience a visualization gone wrong, very wrong. It can happen something like this:





