I have a question concerning enlightenment?

The way I observe and understand it, some people do believe that all they need is to let go of their negativity and then they have reached it. A colleague introduced me to the so called Release technique last Friday and although it is indeed a wonderful technique to let go of negative, or even harmful emotions, if we have let go of that, in my personal view this is still not enough in life. I cannot properly understand why people can be then just content with the stage of releasing of negativity but having no other spiritual goal in mind. I do not know if you understand what I mean, and I myself am not understanding properly too. -:) So I was invited to a $600 enlightenment seminar which offered me enlightenment in 4 days time. But releasing my own negative stuff does not make me enlightened in my map of the world, although it is a very pleasant feeling to let go of bothering thoughts and indeed be able to follow my own intuition undisturbed again. What do you think yourself when you read this?