That is all. No judgmental thoughts, just performing. The gymnast's body knows where to go without being told. The body will go on flow and the mind on automatic pilot. The body, in the visualization knows where to run, when to jump, how to perform on the beam.
Performance is perfect.
Some gymnasts may find an increased awareness and an ability to flow with the visualization. They will be able to blank their mind of any thoughts and perform as in a dream. They have found the zone. Others may struggle. This is an area that the accomplished gymnasts are aware of.