What does Acts 20:6 mean?

Paul and Luke are in Philippi, making their way to Jerusalem. Paul had planted the church in Philippi, off the coast of the northwest Aegean Sea, during his second missionary voyage. When he traveled south to Thessalonica, he apparently left Luke there, as the pronouns changed from "we" to "they" (Acts 16:16). Paul's other traveling companions have already sailed east to Troas, on the coast of modern-day Turkey (Acts 20:4–5). It's thought there are so many because they are accompanying their churches' donations to the church in Jerusalem (Romans 15:26).

The "days of Unleavened Bread" refer to the day of Passover and the following week of the Feast of Unleavened Bread. Jesus died on Passover many years before. Fifty days later, on Pentecost, the Holy Spirit came to indwell His followers (Acts 2:1–3). Paul now wishes to return to Jerusalem to celebrate Pentecost (Acts 20:16).

This is at least the third time Paul visits Troas. The first was during his second missionary journey when God gave him a vision that he was needed in Macedonia. That is also when Luke first joined his group (Acts 16:8–10). Paul's second visit occurred after he left Ephesus. He had wanted to go to Corinth but seems to have decided to cover Macedonia first (2 Corinthians 1:16)). He traveled north to Troas, then west to Philippi (2 Corinthians 2:12–13).

While the team is in Troas, Paul will preach at the church there. His sermon will be so long and the room so stuffy that a young man falls asleep and falls out the window. When the church members reach him, he is already dead. Paul, however, brings him back to life, and resumes preaching until morning (Acts 20:7–12).