The document discusses various aspects of meter and scansion in poetry. It defines meter as the rhythm of accented and unaccented syllables organized into patterns called feet. It describes the main feet used in English poetry as iambic, trochaic, anapestic, and dactylic. It also discusses metrical variations like substitution, inversion, and catalexis that provide flexibility. Metrical patterns and variations contribute to the overall movement, emotion, and character conveyed by a poem.