Like everything we do, our minds should be engaged in prayer. More in prayer because we are speaking to the God who created the entire universe. The God who holds the power of life and death, salvation and damnation.
Would you waste the time of an earthly ruler? How much more should you consider your words to be pleasing to God who puts those rulers in their position.
He already knows every thought you ever had, so why do you even need to use a lot of fancy words? If you are troubled, pray for help and let your heart cry out with the great emotion you feel which is beyond verbal expression.