Vaimānika Shāstra is a book from India that talks about flying crafts. It was written a very long time ago by people who believed in magic and ancient technology. They wanted to create a flying machine that could go beyond the limits of what was possible at that time.
The book talks about how to build machines that can fly in the sky without wings. These are called vimanas, and they are supposed to have magical powers that make them very fast and powerful. The book has instructions on how to build them and how to use them.
However, some people think that the book is just a myth or a legend, and that nobody has ever really built a vimana. Others believe that there might be some truth to it, but that we haven't yet figured out how to build one. In any case, it's an interesting book that tells us a lot about the history and culture of India.