Simple life is now hard!
Genesis 3:19 In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return.
Basically, it will be a laborous grind to just live Adam. Sin put a strain on the world that was not supposed to be. Mankind will enter this world the same as they leave. However, their souls are eternal. I got the joy of reconnecting with an old prison ministry friend last week, actually two, and he just moved into a retirement facility. He was a well decorated navy vet at age 90. He over a lifetime, has collected all sorts of things. Yet all he owned at this point was what he had in his studio sized room. He said, pitch the rest, to his daughter in law. He had lost two prior wives due to medical reasons. Reality opened my eyes here, naked you came in this life, naked you will leave. Cant take things with us. Might as well invest all we have into Gods kingdom, whenever, however, we can.