The Bible itself, is helpful for us, even though it was not written directly to Wanda Yonchichvak in Germany directly.
Ephesians 5:26 that He might sanctify and cleanse her with the washing of water by the word,
Concerning the church in that day. That was too pure, without blemish, and holy. This scripture is helpful in fortifying the understanding that the word that we have even though it was not to us directly, in a spiritual sense helps us by washing of the word in and through our hearts, and minds as we read it today. Taking away the things of the world that fills our hearts and minds, and replacing them with something which is better. That is to have mindful thinking of things that bring life and spiritual life at best.
Paul encourages the Saints in Rome, in which he had stated:
Romans 12:2 2 Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is—his good, pleasing and perfect will.
Working is a good way to pay our bills, take care of our wife/husband/children, have food on the plate, have a car to get back and forth to work... etc. Our minds, and hearts can get polluted with the cares of this life, and even seek for say sex/rocknroll/drugs, or the healthy benefits of life, more than Yahavah/God himself. That is why Paul writes to the Saints who lived in Rome at that time. Encouraging them, to not conform to the ways, maybe even the way the people around them may have felt, even their emotions concerning the things of the flesh, because the priority for Paul was to preach the message of the heavenly and spiritual over the matter of the flesh though still interchangeably becoming a man as under law to some people under the law of Moses in his day, and to those not under the law of Moses as people not under the law of Moses to win Christ Jesus; however the priority was not set on this world exactly, but what was God's will, by abiding in the Lord Yeshua as Paul had went around preaching the gospel to all the world he had known at that time in order for his mission to be complete before being killed off.
Paul taught the people of 1 Thessalonians 4:3 that God's will was sanctification, a process just like how water plants process through their systems to purify water, by eliminating bacteria. Sanctification is a process of similar spiritually, in which the once way of the heart and mind is renewed to the things concerning the will of God, which is good, pleasing, and perfect. In 1 Thessalonians 5:18, Paul writes to them, saying that it's God's will in Christ Jesus, to pray continually, give thanks (no matter the circumstances), and rejoice always. In a few verses later in Romans 12:14-16. Paul calls for rejoicing with those who rejoice, being sad with those who are sad, blessing those who persecute you, living in harmony with one another (typically the flesh and ways of the world are to fight one another), not being conceited, not to be proud, and enjoy the company of the lowly.
The Bible is truly wonderful, however, the eschatology side of things is where many things can get misconstrued, for sure.