The Synod of Aschheim serves as a significant ecclesiastical gathering led by Tassilo, addressing various church-related issues through a series of decrees. It emphasizes the importance of adhering to the teachings of early church leaders while also adapting to the needs of the present time. The decrees cover a wide range of topics, including the responsibilities of priests, the protection of church properties, the administration of tithes, and guidelines for the treatment of clergy, widows, and the poor. The synod aims to ensure the integrity of church practices and the welfare of its community.