Having a purpose in life gives you perspective – when you have a purpose for doing something it changes how you respond to obstacles. Increasing desire to spread the gospel and share Christ is a mark of progress in the Christian life. That’s what we see happening here with the Thessalonians:
“…sent Timothy, our brother and minister of God, and our fellow laborer in the gospel of Christ, to establish you and encourage you concerning your faith, that no one should be shaken by these afflictions; for you yourselves know that we are appointed to this. For, in fact, we told you before when we were with you that we would suffer tribulation, just as it happened, and you know.” 1 Thessalonians 3:2-4
The Thessalonians had experienced pain as a result of their decision to follow Jesus. Paul tells them not to make the mistake of interpreting their situation as evidence that they did something wrong, but that they did something right. They were appointed to this. They’re on the right track. They were, in fact, born for this. Their passion to preach the gospel was a mark of progress, and so was the adversity that came against them. If you are going to shine a light darkness will try and put it out.
“Yes, and all who desire to live godly in Christ Jesus will suffer persecution.” 2 Timothy 3:12
This is far from being a bad sign – it’s evidence you are right where you are supposed to be.