I was thinking:

For a materialist, there is no such thing as soul. Everything is body and mind. The mind and consciousness die with the body. That is how things appear on the surface. That is the precise reason why many people think that is correct.

However, for a spiritualist, things are not like that way. The elderly people also would probably agree with it.

If everything in the world were fair and lovely, even if the materialists were right, we had no problem. But that is not how things are. Many are tortured for no reason. Many are trampled on; killed. What comfort is there for the weak when power, wealth and the numbers are on the other side? The reality is that when power, wealth and the numbers are on the other side, the law will also be on the same side. People who are unjustly imprisoned, those who are kicked down - and when they get up kicked down again, those who are killed without any traces or witnesses... What must be going through their minds as they go down into the earth?

"I am mere body. I only have this body. I am finished."

If that is how they must think, then the fault lies not with God; it lies with humanity. Humanity must perish completely. No one has any right to live.

But look at what Paul writes in his state of being oppressed: "We are hard pressed in every way, but not crushed; perplexed, but not driven to despair; persecuted, but not forsaken; struck down, but not destroyed." (2 Cor. 4: 8,9)

In his life Karl Marx experienced financial poverty. But Marx did not go through the persecutions and strike that Paul and the early church with him went through.

Then how could Paul say that they are “not constrained; not forsaken; not destroyed”?

One can see the underlying reason for that a few verses later.

“Even though our outer self is wasting away, yet our inner self is being renewed day by day” (4:16)

That is the spiritual conviction!