DALLAS (Reuters Life!) - Although most Americans are Christian and many are devout it hasn't stopped some members of the flock from believing in astrology, reincarnation or the ability of trees to trap spiritual energy. A poll by the Pew Forum on Religion & Public Life shows a surprising number of U.S. adults claim to have had supernatural experiences such as ghost sightings or hold beliefs associated with the New Age movement or Eastern religions. And some of them claim allegiance to more traditional faiths such as Catholicism or evangelical Protestantism. "American religious folks hold a variety of views and there is overlap among their beliefs and practices. Many do not fit into simple boxes," said Pew researcher Alan Cooperman. The poll released on Wednesday showed that three-in-ten Americans say they have felt in touch with a dead person and 18 percent say they have seen or been in the presence of a ghost. Other Pew surveys have shown that relatively few Ame...