Problem:
Write a paragraph that summarizes the major themes of the Upanishads and tells how they represent the Vedanta period in the development of Hindu thought. Use specific passages from multiple Upanishads to make your points. For citation of these passages, include the Upanishad name and verse number (the verses are numbers with small numbers in the primary text). It will look like this as an example: (Kena, 3-5), which means Kena Upanishad, verses 3-5.