The document discusses different units of measurement used in ancient Indian texts for astronomy and human scales. It describes yojana and angula units used in texts like Surya Siddhanta and Bhagavata Purana to measure distances in the solar system and beyond. A yojana could vary between 7-16 km depending on whether it referred to human or astronomical scales. Dhama is another unit used to measure zones within the galaxy, with 30 dhama zones described ahead of the sun's position.