One sweetly solemn thought. Anticipation of Heaven. This piece was not intended for public use, nor is it a suitable metre for musical treatment, yet it has won universal acceptance and popularity. In some instances this has been attained by change of metre as in the Supplement to the Baptist Psalms & Hymns 1880, No. 1185. Johnson's Encyclopedia is in error in saying it was "written at the age of 17." The Congregational Quarterly for Oct., 1874, says, "it was written, she tells us, in the little back third story bedroom, one Sabbath morning in 1852, on her return from church." This statement shows that it was composed when she was 28, and not 17. The popularity of the hymn in Great Britain arose mainly through its use in the Evangelistic services of Messrs. Moody and Sankey. In the Protestant Episcopal Hymns for Church and Home, Phila., 1860, No. 383, it is given as "A sweetly solemn thought." [Rev. F. M. Bird, M.A.]
--John Julian, Dictionary of Hymnology (1907)