Which of these were holy Hindu scriptures written by gurus to help connect people to heavenly forces

the Upanishads
The Mahabharata
the Ramayana
the Theravada

Out of the options given, the Upanishads and the Ramayana are the holy Hindu scriptures written by gurus that aim to connect people to heavenly forces. The Upanishads are a collection of ancient texts that explore the philosophical and spiritual aspects of Hinduism, providing insights into the nature of reality, self, and divine entities. The Ramayana is an epic poem that narrates the journey of the protagonist, Lord Rama, and teaches moral values and devotion to god.

On the other hand, the Mahabharata is also an epic poem, but it primarily focuses on the Kurukshetra War and the difficulties faced by the Pandavas. It includes philosophical and spiritual discussions, but its main emphasis is not specifically on connecting people to heavenly forces. Lastly, Theravada is a school of Buddhism and not a Hindu scripture.