Have you ever been in a position when your consciousness seems to have left your body, time slows down or speeds up. 

This can happen when you are under pressure or when you have trained really hard. Runners sometimes get a feeling of joy and well being after a hard run, well this is called an altered state of consciousness. There are techniques which can be used by sports people to control these feelings when they have to perform under these conditions. Understanding sports psychology can give you the competitive edge.