The problem ‘what is reality?’ arises from a consciousness of ourselves as living in a world which seems to be outside of, and yet is the cause of, our conscious life. Our reflections on this lead us to wonder if we can know of the world beyond our perceptions – the underlying cause of our consciousness of appearances. This world of the underlying cause we call ‘reality’.

Is reality mental – mind; or is it physical– matter and energy? If mind, is there a deeper consciousness underlying appearances that unites us all and is the source of our conscious thoughts? If matter, can we understand how the play of material objects and forces can give rise to conscious life?

If reality is mental, we might best connect with it by skillful introspection; by a pure, deep, and penetrating way of thought that would see past appearances and show reality directly to the mind. Alternatively we might passively receive, by a process of revelation, a mental image of reality. In revelation, the cosmic mind could speak directly to us, in apparitions or visions.

If ultimate reality is instead composed of matter and energy, the method recommended is more empirical; that is, more reliant on the senses. This method, which we call ‘science’, involves the formulation of statements of proposed facts (observable truths) about the physical, along with statements about relationships between the facts, in the form of physical laws. In science, these statements of laws and proposed facts are subject to criticism and testing by observation and experiment. The statements that at any time best convince, after testing and criticism, are given the status of ‘actual fact’, or if you wish, reality.

Revelation resists and endures, because science gives scant comfort to the desire for unification with cosmic reality. But science is relentless, and facts, ultimately, are irresistible.