Can you summarize the historical context and tradition of performing Parayans and Saptahs as described in the text?

The practice of performing Parayans (readings) and Saptahs (weekly recitations) is described as a very ancient tradition with roots in the Vedic era. According to Chapter 0, these rituals are commonly performed for great Sanskrit works like the Vedas, Bhagavata, and Ramayana. The tradition extends to revered Marathi works such as Shri Dnyaneshwari and Shri Dasbodh. The text emphasizes that this form of devotion is not limited to biographies but also includes purely spiritual knowledge texts. This long-standing custom highlights that the intensive study and recitation of sacred texts is a deeply ingrained and valued form of Guru service.