Mused

He often mused about his future while doodling in his notebook.

He mused about the complexities of human relationships while people-watching at the park.

He mused about the mysteries of the ocean while scuba diving.

She mused about the different possibilities that the future held.

He often mused about the fragility of life and the inevitability of death.

She often mused about the meaning of life and the purpose of human existence.