“Vipassana is one of India’s most ancient meditation techniques. Long lost to humanity, it was rediscovered by Gotama the Buddha more than 2500 years ago. The word Vipassana means seeing things as they really are.”
That is just the opening sentences for the very interesting web page that I suggest you read. So, go ahead, click on over to read:
Introduction to the Technique
That web page is just one of the pages from the website of dhamma.org. You might find the whole thing enlightening, as well as personally helpful. So, once again, I say click on over, this time to read:
Vipassana Meditation, the international home page of the organizations which offer courses in Vipassana Meditation as taught by S.N. Goenka and his assistant teachers in the tradition of Sayagyi U Ba Khin.