You can use NLP anchoring as an effective way to instantly create a particular state of mind or mood on demand.
NLP anchoring is one of the most simple yet effective techniques available, because it works on a principal we are all familiar with - that is, associating a particular mood or feeling with a particular stimuli.
We all do this subconsciously - the smell of baking reminds you of home, or a piece of music reminds you of a person or a place. What NLP anchoring does is take that form of association and use it as a way of deliberately producing a desired state (for example one of being calm and relaxed) whenever it is needed.
It works on the principles of classical conditioning established by Pavlov is his experiments with salivating dogs - he noticed that they salivated whenever their food was presented. In Pavlov's experiments he sounded a bell when the dog was given his food. After a number of pairings of the bell and the food the dogs would salivate whenever they heard the bell, whether or not the food was present.
There are various types of anchor that you can establish. In each case you do it by producing the stimuli (the anchor) when the resourceful state is experienced so that the resourceful state is paired to the anchor.