I think a 'culture of corpse' refers to an obsession with people and things that are dead. It is suggesting that we revere the past. The second sentence seems to be saying that history is appealing because it is done. There is less uncertainty than the present or the future because it has already happened and you can immerse yourself in it.

I've never heard anyone say 'culture of corpse' before. I guess they mean people are obsessed with the dead. The second sentence is also a bit strange. It means history is satisfying because we can touch it and interact with things from history.

Thanks a lot.