On Heaven and Earth is a book about the two worlds and the purpose of life. It's written by Peter Ramster, a retired psychologist and film maker who has explored life after death since the 1970s and had many personal experiences throughout his life that have given him the answer to the aged old question of why we are here. He has also come to understand aspects of the two worlds. His life has shown to him conclusively that we live on after death, and it has given him a better understanding of the world we call Heaven. Peter shares those insights in this book. Overall, his experiences have shown him that there is far more to life on Earth than most people realise, but most people don't even understand the basics. Peter's experiences highlight some knowledge that people should be aware of.