Vision literature, a popular genre in the Middle Ages, typically features a narrator who experiences a dream or trance. Common tropes include the soul leaving the body, a journey through the afterlife or spiritual realms, and the presence of a guide—often a historical or allegorical figure—who instructs the narrator. These elements serve to provide moral or theological instruction to the reader, as seen in works like 'The Divine Comedy' or 'Piers Plowman'.

A mystery play, or cycle play, is a form of medieval drama that depicts biblical narratives, typically performed by trade guilds. 'The Second Shepherds' Play' is the most famous example, known for its humorous sub-plot involving the thief Mak, which precedes the solemn Nativity scene. Other options listed are either secular tales from Chaucer or religious poems, rather than cycle-based mystery dramas.

Mysticism is generally defined as the pursuit of direct, intimate union with the divine through contemplation and spiritual experience. The provided answer key identifies it as a genre from the Anglo-Saxon era, which conflicts with the standard theological and literary definition. This answer is maintained as requested, though it is important to note that mysticism is a broader spiritual phenomenon rather than a specific period-bound genre.

Dante argued that Latin was a static, formal language suitable for scholarly, legal, and philosophical essays, which required a fixed structure. Conversely, he believed that the vernacular was a living, evolving language better suited for the emotional depth and expressive nuance required in poetry and creative literature.

The Gawain poet, also known as the Pearl Poet, is a significant figure in the 14th-century Alliterative Revival. His masterpiece, Sir Gawain and the Green Knight, represents a pinnacle of Middle English literary achievement alongside the works of Chaucer and Langland, showcasing the sophistication of the dialect and narrative structure of the period.

The 'Ancrene Wisse' is a 13th-century guide written for anchoresses, who were religious women living in seclusion. The text provides comprehensive instructions on spiritual discipline, daily conduct, and physical living arrangements, emphasizing the necessity of isolation from worldly distractions, including gossip and unnecessary contact with men, to maintain their religious devotion.

In morality plays, characters often represent abstract concepts. 'Everyman' signifies the universality of Christian struggles, making them relatable to all audiences regardless of their individual backgrounds. By naming the protagonist 'Everyman', the playwright emphasizes that the journey toward salvation is a shared human experience rather than an isolated or unique event.

Estates satire is a medieval genre that critiques the three traditional estates of society: the clergy, the nobility, and the peasantry. By highlighting the moral failings and social tensions between these groups, the genre serves as a vehicle for social commentary and moral instruction, reflecting the hierarchical structure of the Middle Ages.

Piers Plowman, a major work of Middle English literature attributed to William Langland, was composed in the 14th century. It is a complex allegorical poem that explores themes of social, religious, and moral reform. Its composition coincides with a period of significant social upheaval in England, including the Black Death and the Peasants' Revolt, which are reflected in the poem's critical examination of contemporary society.

Julian of Norwich is widely recognized as the author of 'Revelations of Divine Love,' which is considered the first book written in the English language by a woman. Her work provides a profound theological reflection on her visions of Christ. While other options are incorrect, her status as a pioneering female author in the English vernacular remains a cornerstone of medieval literary history.