The most important of his numerous works are the Wissenschaftslehre, oder Versuch einer neuen Darstellung der Logik, advocating a scientific method in the study of logic (4 vols., Sulzbach, 1837); the Lehrbuch der Religionswissenschaft (4 vols., Sulzbach, 1834), a philosophic representation of all the dogmas of Roman Catholic theology; and Athanasia, oder Gri nde fiir die Unsterblichkeit der Seele (2nd ed., Mainz, 1838).
Scientists continue to research both the OBE phenomenon and the NDE (Near Death Experience) phenomenon.
One scientist who succeeded in documenting an example of an NDE experience is Dr. Bruce Greyson.
Over 13 million Americans believe they've had a NDE.
Sometimes, this is where the NDE ends, and the greeter informs the person that it isn't her time and she must go back.