Christianity exists in tension between, on the one hand, loving the world too much, and on the other, loving the world too little. Jesus preaches that Christians should care for the poor in this world. Yet he also preached that we should not worry about what happens to us in this world.
Despising the world and falling in love with it over God are both wrong for Christians. The proper path is to love the world and the people in it, and care for them, and yet at the same time realize that the world is temporary, and a foretaste of something much better to come. People, of course, are not temporary, but eternal, but we must love them in a manner appropriate to eternal beings, which sometimes means valuing their spiritual welfare over their immediiate physical welfare.
Still physical and spiritual welfare are generally connected in some sense.
At first I thought your question read "is it ever a sin to grow weary of this life?" in which case the answer would be no. But is it a sin not to grow weary of this life? First off, the New Testament Greek work translated as sin is harmatia, which means "to miss the mark."
Sin is human failure of hitting the target of who it is God created us to be. Now, we'll never in this world reach that mark, or hit the bull eyes of that target. There are just too many bumps in the road, misleading road signs, and storms that at times make the road invisible.
We become lost. Now, if for some reason, a person finds the means and opportunity to somehow remain immune to the hardships and pains of this mortal life, than I could understand how instead of feeling weary of life, one would relish life. The question would then be, in this relishing and enjoyment of all the things that can bring us happiness, do we still miss the mark?
Are we somehow loosing our soul? For one of the most penetrating statements Jesus ever spoke was this: "What shall it profit a person, if he (or she) gains the whole world and loses his (or her) own soul?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.