Indeed animals see and smell and hear what we can't. I have witnessed this. Meantime check these images:
[link to fotolog.terra.com]
[link to fotolog.terra.com]

[link to fotolog.terra.com]
[link to fotolog.terra.com]

Our personal window on the Universe is terribly small within a stunning range of wavelengths. With our eyes we see wavelengths between 0.00004 and 0.00008 of a centimeter (where, not so oddly, the Sun and stars emit most of their energy). The human visual spectrum from violet to red is but one octave on an imaginary electromagnetic piano with a keyboard hundreds of kilometers long."

Much of what you see is outside our human visual band, our eyes cannot register wave photons no matter how powerful they may be. Longer that the visual wavelength limit -up to about a millimeter- lies the infrared. At the short end is violet, with orange, yellow, green, blue and hundreds of overlapping shades. Longer waves, into kilometer-wavelengths toward the unknown end are what we call "radio."

Shorter than the visual limit are the ultraviolet -all running in the vacuum at the speed of light. At less than a percent of the wavelength of visual light are X rays, and at a factor of 100 smaller are the deadly gamma rays.

Demons enter into our dimension due to cross over vibrational fields using rituals. Demons feed of fear (low vibration), the absolute terror of sacrifices, they can feed in the same vibration of stress (adrenaline in the bloodstream). The sacrifice of young virgins specially, because there’s a change in the energy field when a woman gets into her period for the first time or when you start sexual activity. The demons demanded that sacrifice before that change. There are certain points on the planet where are vortex of energy in which the coneXtion between dimensions is closer. Is where the gods manifest themselves as they are because there are electromagnetic fields there and hence the rituals affect the global grid :
[link to www.youtube.com]
The use of hallucinogenic stuff acted like a PAIN MAGNET.