The abuction phenomenon is an umbrella term used to describe hypotheses, claims, or assertions that non-human creatures (usually aliens) kidnap individuals—sometimes called "abductees"—and take them to their ship, usually for medical testing, experiments, or for sexual reproduction procedures. Some purported abductees claim that the aliens tried to warn them of the declining state of their planet. While many of these purported encounters are described as terrifying or humiliating, some have purportedly been transformative, resulting in a profound mystical experience and a feeling of oneness with God or the universe while others are described as pleasant.. Reports of the abduction phenomenon have been made from around the world, but have perhaps seen most mainstream attention in the United States.