And the Spirit said to Philip, "Go over and join this chariot." So Philip ran to him and heard him reading Isaiah the prophet and asked, "Do you understand what you are reading?"
Acts 8:29-30

The eunuch in Acts 8 wasn't only the treasurer of Ethiopia, he was a wealthy man in his own right. He had a driver, and probably a full retinue, and a scroll was a very expensive item. He wasn't someone a commoner would approach casually, but God brought him into a mental and spiritual condition to be ready to receive the Messiah. He brought Philip to the right time and place to deliver the Word that the eunuch needed to hear. God provides opportunities to serve. Be sensitive to the prompting of the Spirit as well as to things that stand out as unusual or inviting.