In Daniel chapter 10, Daniel is deeply troubled and prays for 23 days straight until on the 24th day, he was given a vision. An angel had come to him on the very first day, but it took time for the angel to appear before him as he was held up in battle with the Prince of Persia who symbolizes Satan in this passage. This message teaches the importance of continuing in prayer and not fainting and growing weary in the discipline of prayer.