The purpose of this survey is to develop a deeper understanding of some experiences which are unusual but not uncommon within the population, with a particular focus on experiences that people often label as "ghosts." You would be asked to complete a series of questions about your experience and other aspects of your personality and answer some open-ended questions which ask for more details about your experiences. Your participation in completing this survey is voluntary, and you may decide to stop at any time with no penalty, or you may choose not to answer any of the survey questions. All responses will be kept confidential, and will not be linked to you in any way. Quotations from open-ended sections may be used in published research including a book about these experiences, but participants will be given a pseudonym to protect their identity. This survey should not take more than 40 minutes.