describe what the Vedas are and also explain who wrote the Upanishads.

The Vedas are a collection of sacred texts in Hinduism, considered to be the oldest scriptures of the religion. They are a compilation of hymns, prayers, rituals, and philosophical teachings that were orally transmitted for generations before being written down in ancient Sanskrit. The Vedas encompass a wide range of topics, including ritualistic practices, spiritual principles, cosmology, ethics, and the nature of reality.

The Upanishads, on the other hand, are a specific group of texts that form the concluding part of the Vedic literature. They are philosophical treatises, often in the form of dialogues, which explore profound questions about the nature of existence, ultimate reality (Brahman), the self (Atman), and the eternal truths that underlie the universe. The Upanishads are written in prose and are characterized by their introspective and metaphysical nature.

It is difficult to attribute the authorship of the Upanishads to any single individual since they were compiled over several centuries by different sages and scholars. The Upanishads emerged as a result of deep contemplation and spiritual insights gained by various seers and philosophers in ancient India. These enlightened thinkers shared their spiritual experiences and philosophical teachings orally, and their disciples later compiled and preserved their wisdom in written form. Hence, the Upanishads are considered to be a collective work representing the thoughts and insights of multiple ancient philosophers and sages.