She begins the first with an observation about human psychology: that it is rather strange.
In particular that:
Human beings live in a state of mind called "sanity" on a small planet in space. They are not quite sure whether the space around them is infinite or not (either way it is unthinkable). If they think about time, they find it inconceivable that it had a beginning. It is also inconceivable that it did not have a beginning. Thoughts of this kind are not disturbing to "sanity", which is obviously a remarkable phenomenon and deserving more recognition.
There is no denying the force of this. And it is this force, together with the power of her aphorisms, one of which is presently a heading for this blog, that led me to look more closely, and take seriously, what she is saying.
I remember when thoughts like these were first troubling to me. The endlessness of time was a puzzle in itself, but when contrasted with the finiteness of me it left me feeling quite unstable. Thinking of the relativity of space had a similar effect. I could not see why the vastness of our known universe might not yet be microscopic in the context of one of much greater finite magnitude. A fantasy I entertained was that our solar systems, stars, suns, planets, could themselves be sub-atomic particles of a still greater reality. Conversely, the crumbs of dust that I brush from my lap when leaving the table after a meal might be the constituent parts of creaturely civilizations, too small for us ever to apprehend, thus swept away by my unthinking gesture.
If at a distance these thoughts now seem fanciful, they were I think the first conscious stirrings of what became an interest in the meaning of existence. My intellectual and spiritual journey has led me away from these earliest unsettling thoughts to a more mature, adult reflection.
Or has it?