effective for body and mind

Really very good video! The stretching exercises are great, the techniques are well explained, and internal tensions are reduced!
David Carradine and his coach Kam Yuen doing a good job, and the video is still absolutely useful in spite of many years. The costumes and the music are quite funny in fact, but that makes the video not less competent or so.
The dragon is therefore not explained, because it is a mental thing. This experience must each make for himself, and is most likely through meditation.
All in all probably the best place to start with Kung Fu, and definitely recommended!