The critical mind is the part of our mind that analyzes information and determines whether or not it should be passed into our subconscious. Since we can't actively think with our subconscious (if we did, we'd be consciously thinking of the thought, hence they would no longer be in our subconscious), any thoughts that enter into it will normally play upon our minds without us being aware of it.

Some of these thoughts can be positive, such as thoughts associated with confidence and the ego to an acceptable level, however some of the thoughts can also be negative, such as those which cause us to pick up bad habits and addictions like excessive eating or smoking addiction. Even alcoholism is a problem that is associated with addiction that we can't easily get rid of.

So what self hypnosis allows us to do, is dive down into our subconscious and perform hypnosis upon it, causing it to change its fundamental thought structure and patterns and replace them with more positive, useful thoughts. If we have a negative thought for example that is associated with eating, and we want to use hypnosis for weight loss, then we may give ourselves a suggestion such as 'I will be confident with myself without feeling the need to eat'. This will subconsciously plant the thought that you are quite capable of living a happy, fulfilling and confident life without the need to be stuffing yourself with pastries.

As you delve deeper into the hypnosis state, you may enter into various stages known as the hypnoidal, cataleptic and finally the state of somnambulism. When we're in somnambulism, we often experience a form of temporary amnesia. That is to say that we forget a lot of what happens whilst we're in the hypnotic state. For this reason it might be an idea to seek the services of a hypnotherapist to guide appropriate suggestions into our subconscious, as often if we go into hypnosis too deeply, it becomes harder to give ourself positive, affirmations and suggestions.

So if you want to learn self hypnosis, then by all means, find an online course that you believe is suitable for your needs. If however you'd rather just practice self hypnosis for your own benefit then why not try finding the services of an appropriately trained hypnotherapist first, before embarking upon your journey to learn hypnosis? Whatever you decide, know that if you apply the principles you're taught, you can use hypnosis in your every day life to help you immensely.