Find a happy place
When chanted to oneself repeatedly serves to conjure a positive memory, either fictional or real, that inspires optimism and hope during a time of despair, fear, or general malaise.
Peach, the starfish in Finding Nemo says hurriedly, "Find a happy place, find a happy place, find a happy place!" as a coping mechanism when the heavy-fingered niece of the dentist, Darla, taps on the glass of the aquarium.