I am a fan of all Dr Emoto's books which have vital points to make for all of us, although I don't always agree with his interpretations and segues.
If you are new to his work, it might be better to first look at an earlier book, perhaps "The Hidden Messages in Water". There is much controversy about Emoto's claims but, whether legitimate or false, they are too important to be ignored. If they are true, then his books offer tangible evidence that thoughts and words can change body chemistry, given that our bodies are approximately 70% water. This would make sense in light of other research on the effects of prayer and on the mind/body connection. If his claims are false, then hundreds of thousands of people have bought books showing beautiful crystal photography and have held the vibration of "love and gratitude" in their hearts.
This slim booklet is a distillation in which Emoto focuses on what he thinks, and many agree, is the most exquisite of the many, many beautiful water crystals created by his research, one shaped quite early on by the words "love and gratitude". He points out this exceptionally elegant crystal emanates a miraculously beautiful light.
Emoto has produced gorgeous crystals from "love" and from "gratitude" respectively but says that, when the two are combined, the result has a mysterious and sacred aura. The author believes this is proof that these concepts are at the root of the creation of the world and he could be right.
This brings me to ask: how many of us, if/when we pray, essentially create shopping lists? And what proportion of our prayers are instead songs of love and gratitude? How would we (and our lives) be/feel different if these ratios were reversed?