The hymn writer finds in the limitations, which he must bear in mind as he writes, no small hindrance to spontaneity and poetic vision. He must limit the thought not only to the comprehension, but to the natural feelings of the people who are to sing what he writes. He must not use unusual or polysyllabic words. Striking figures, startling tropes, involved similes, obscure metaphors, allusions to things known by but few, descriptive or dramatic lines, are all forbidden. Every verse, whether in single or double meter, must be complete in itself, whatever its relation in thought to what precedes or follows. There must be unity, simplicity, condensation of thought, and yet a clearness that shuts out involved thought or mysticism that cannot be instantly grasped. The hymn writer is like a violinist called upon to play on a single string.[5] Thomas Hornblower Gill, an English hymn writer who is slowly gaining recognition in current hymnals—_The Revised Presbyterian Hymnal_ has five of his hymns—gives his conception of what hymns should be, in his preface to his first volume, issued in 1868. He insists that the true hymn is a true poem in every case, while it is debarred from liberties of luxuriance which may be claimed by other poetry. “It may easily be too figurative; it cannot be too glowing or imaginative... They should exhibit all the qualities of a good song—liveliness and intensity of feeling, directness, clearness and vividness of utterance, strength, sweetness, and simplicity and melody of rhythm: excessive subtlety and excessive ornament should be alike avoided.” _The Handicap of Meter._ Not the slightest handicap is the necessity of choosing a form of stanza that will at the same time fit the writer’s sentiment and be adapted to singable tunes known to the congregations which are to be lyrically served. This range of form is quite limited. Most of these tunes call for iambic or trochaic measure, because anapaestic or dactylic numbers lack the dignity and the impressiveness necessary for general hymns. The form of the stanza may take the elevated, heavy “Long” Meter, the more widely expressive “Common” Meter, the sententious “Short” Meter, “Sevens and Sixes,” “Eights and Sevens,” plain “Sevens” or “Sixes,” or the more lively “Sixes and Fours” or “Sixes and Fives.”[6] These different meters have very marked characteristics. It is really marvelous how the instinct of true hymn writers in all generations has unconsciously, or at most subconsciously, taken account of them and with practical unanimity observed them.