A compilation of liturgical texts, hymns, and private devotions forms the core of a devotional guide used by adherents of Eastern Orthodox Christianity. These volumes typically include the Divine Liturgy, daily prayers for morning and evening, prayers for various occasions (such as meals, travel, or illness), and the Psalter. An example would be a volume containing the services for major feasts like Pascha (Easter) or Christmas.
Such guides offer a structured framework for spiritual practice, connecting individuals to the rich liturgical tradition of the Church. They provide a means of personal and communal prayer, fostering a deeper understanding of the faith and a closer relationship with God. Historically, these collections played a crucial role in preserving and transmitting liturgical practices across generations and geographical regions, particularly during periods of persecution or upheaval. Their continued use today underscores their enduring significance in the spiritual lives of Orthodox Christians.