a Japanese author known for his controversial claim that if human speech or thoughts are directed at water droplets before they are frozen, images of the resulting water crystals will be beautiful or ugly depending upon whether the words or thoughts were positive or negative. Emoto claims this can be achieved through prayer, music or by attaching written words to a container of water. These claims have been strongly criticized as pseudoscience.The image here, for example, was "exposed" to the words "love and gratitude."
I think that people like Emoto's work because they want to feel a connection between their emotions and the physical world, so they can feel a bit of place in the universe.
I also think that this is pseudoscience. In other words, Emoto could NOT reproduce the same images from the same emotional "exposures" at more than a random rate.
But, that will not keep people from liking him. After all, some people think that the Virgin Mary appeared on a grilled cheese sandwich -- and that sandwich sold for $28,000 to a casino!
Bottom Line: Water is an emotional topic, and emotions are not often constrained by logic or scientific method -- by definition.