this is a quote from Winston Churchill:
I had a feeling once about Mathematics, that I saw it all—Depth beyond depth was revealed to me —the Byss and the Abyss. I saw, as one might see the transit of Venus—or even the Lord Mayor’s Show, a quantity passing through infinity and changing its sign from plus to minus. I saw exactly how it happened and why the tergiversation was inevitable: and how the one step involved all the others. It was like politics. But it was after dinner and I let it go.
What is the meaning of "the Byss and the Abyss" in this context?
Also, can you tell that I am reading the first sentences right?
one time I had a feeling about Mathematics. I thought I saw it all—Depth beyond depth was revealed to me.