Dr Masaru Emoto's Water, Consciousness & Intent experiment has gained him worldwide recognition for his claim that water is connected to our individual and collective consciousness.
Here's a description of the experiment, the basis of his books, Messages from Water, The Hidden Messages in Water and The True Power of Water:
Mr. Emoto has been visually documenting these molecular changes in water by means of his photographic techniques. He freezes droplets of water and then examines them under a dark field microscope that has photographic capabilities.
Some examples from his works include:
Water from clear mountain springs and streams had beautifully formed crystalline structures, while the crystals of polluted or stagnant water were deformed and distorted.
Distilled water exposed to classical music took delicate, symmetrical crystalline shapes.
When the words "thank you" were taped to a bottle of distilled water, the frozen crystals had a similar shape to the crystals formed by water that had been exposed to Bach's "Goldberg Variations"- music composed out of gratitude to the man it was named for.
When water samples were bombarded with heavy metal music or labeled with negative words, or when negative thoughts and emotions were focused intentionally upon them, such as "Adolf Hitler", the water did not form crystals at all and displayed chaotic, fragmented structures.
Check out a video demonstrating the different crystals. It's incredible: