Upon their return to London the brothers fell in with other Moravians, and through them they became familiar with Luther's teachings. Charles came to a saving faith in Christ during a severe illness, and a week later his brother had a similar spiritual experience. It was on May 24, 1738, that John Wesley attended a meeting in Aldersgate Street, where some one was reading Luther's preface to the Epistle to the Romans. Then for the first time light dawned on his soul, and he found peace with God through Christ. Soon afterwards John Wesley left for Halle, Germany, the seat of the Pietist movement, in order to become more familiar with the teachings of Luther and the evangelical methods of the Pietists. At Halle he also became deeply imbued with missionary zeal. Upon his return to England he launched, with John Whitefield, the greatest spiritual movement his country had ever known. Revivals flamed everywhere. No buildings were large enough to house the crowds that gathered to hear the evangelists, and, because the English clergy were hostile to the movement, most of the meetings were held in the open air. Charles at first aided in preaching, but eventually devoted his time mainly to hymns. It is estimated that John Wesley held no less than forty thousand preaching services, and traveled nearly a quarter of a million miles. It was he who said, "The world is my parish." John wrote some original hymns, but his translations of German hymns are more important. We are indebted to him for the English versions of Paul Gerhardt's "Commit thou all thy griefs," Tersteegen's "Thou hidden love of God whose height," Freylinghausen's "O Jesus, Source of calm repose," Zinzendorf's "Jesus, Thy blood and righteousness," and Scheffler's "Thee will I love, My Strength, my Tower." Charles Wesley died March 29, 1788, after fifty years of service to the Church. The day before he was taken ill, he preached in City Road chapel, London. The hymn before the sermon was Watts' "I'll praise my Maker, while I've breath." The following evening, although very sick, he amazed his friends by singing the entire hymn with a strong voice. On the night of his death he tried several times to repeat the hymn, but could only say, "I'll praise--I'll praise--," and with the praise of his Maker on his lips, he went home to God. John Wesley survived his brother three years, entering his eternal rest on March 2, 1791. The text of his last sermon was, "Seek ye the Lord while He may be found." Whether Charles Wesley or Isaac Watts should be accorded first place among English hymnists has been a subject of much dispute. The fact is that each occupies a unique position, and the one complements the other. While Watts dwells on the awful majesty and glory of God in sublime phrases, Wesley touches the very hem of Christ's garment in loving adoration and praise. Dr. Breed compares the two in the following striking manner: