"We received a letter from Brother Haskell, urging us both to attend the camp meeting; but if my husband could not come, he wished me to come if possible. I read the letter to my husband, and after a few moments’ silence, he said, “Ellen, you will have to attend the New England camp meeting.” LS 236.1"
"And a vision appeared to Paul in the night; There stood a man of Macedonia, and prayed him, saying, Come over into Macedonia, and help us."
Both passages involve a call to a specific location for ministry. Paul receives a vision, while Ellen White receives encouragement from her husband based on a letter. The core idea of being called to a specific place to help others is present in both.