I've actually used this and it has helped me.

Painful shyness has been my curse and I never expected that learning how to dream (in detail) of the life that I really wanted (and then going a step further and finding my life's purpose) would actually help reduce my social anxiety / shyness problem.

I would never have connected the dots on this one, it never occurred to me that something like this would help, but it really has, I am a much less shy person now![ self promotional link removed ]