Answer:
The answer is "secret teaching revealing underlying truth"
Explanation:
The Upanishads are the philosophical strict writings of Hinduism (otherwise called Sanatan Dharma signifying “Eternal Order” or “Eternal Path”) which create and clarify the key precepts of the religion. The name is made an interpretation of as to "sit down closely" as one would to listen mindfully to guidance by an instructor or other power figure, yet Upanishads has likewise been deciphered to signify “secret teaching” or “revealing underlying truth".
The realities tended to are the ideas communicated in the strict writings known as the Vedas which customary Hindus think about the uncovered information on creation and the activity of the universe.