Mused

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

He mused on the possibility of finding true love.

"The professor mused over the complexities of the theory."

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.

The poet mused over the metaphors and symbols in her poem.

The poet mused over the words that would convey his emotions.