Oh, your hobby. I already mentioned Medford, Massachusetts in another posting, so in this one I'll mention another one. In 2019, we spent three weeks in Tucson, Arizona, USA. This is part of the Sonoran Desert. If you use Google Street View and "drive around" you will see all kinds of evidence of a desert climate, including saguaro cactuses everywhere. Tucson is the location of Saguaro National Park.

"Thinking" can be described as "what goes through peoples' minds." However, "thinking" suggests rational concentration on solving a problem. "What goes through peoples' minds" suggests unfocussed thought. It includes impressions, guesses daydreams. He knows what _he_ is thinking. He knows what goes through _his_ mind. He can speak about what goes through _his_ mind. He can speak for himself. He does not know what other people are thinking. He cannot and should not "speak for them." For example, if someone asked me "are body piercings beautiful?" I would say "I can only speak for myself. I don't think they are beautiful. But I can't speak for others."

it's better to ask a person what he meant instead of make other people guess what his flow of thoughts was