Crazy? Well, Japanese scientist, Dr. Masaru Emoto, claims that the structure of water molecules can change based on the thoughts of the humans observing them. He taped a bunch of positive and negative words onto different glasses of distilled water before freezing them and taking photos of the water crystals that formed. Via What the Bleep:
Dr. Masaru Emoto discovered that crystals formed in frozen water reveal changes when specific, concentrated thoughts are directed toward them. He found that water from clear springs and water that has been exposed to loving words shows brilliant, complex, and colorful snowflake patterns. In contrast, polluted water, or water exposed to negative thoughts, forms incomplete, asymmetrical patterns with dull colors.
Here's an example of two of his water crystal photos, one which he told to die and the other which he thanked. They certainly look different.
Honestly, I want to believe that human determination can affect the very structure of water, and I like flirting with the idea that the human mind could manifest realities. But let's be serious. I can't will it not to rain tomorrow. I can't will my car not to break down. Thoughts cannot transcend "fate." The human mind simply can't assume control over forces that are complete externalities (including water molecules).
For more info....
Detailed laudatory info at Life Enthusiast:
From Mr. Emoto's work we are provided with factual evidence, that human vibrational energy, thoughts, words, ideas and music, affect the molecular structure of water.
Detailed denigratory info at Is Masaru Emoto for Real?:
After the lengthy review of Emoto’s research methods and results, I have come to believe that Dr. Emoto is offering pseudoscience to the masses in the guise of defensible research.
Personally, I believe that exploring the idea of human possibilities is intriguing, even if the theories do fall short in the end.