This essay gathers together thoughts on human spirituality and tries to relate them to scientific thinking.
For Jack Mongar mystical experience is seen as the immediate intuitive knowledge of a God or equivalent. This experience is unanalysable and , while it cannot be completely expressed in any language , the writings of past and present mystics are a treasure house .
With relativity and quantum theory modern science may be seen as a jewel with many facets; likewise can religion, with mystical sensitivity being seen as a normal response of mature people around the world.
Mystics, scientists and philosophers ( Russell, Eddington, Heisenberg, Schroedinger, Planck, Bohr, Maslow) are discussed and the contrast between the variety of religious thought and the unity of mystical religious feeling is exposed .
The history of Quaker discussions of this , and developing Quaker attitudes, are outlined.