reflect (think) deeply on a subject -- perhaps aloud
The boy mused awhile over the substantial change which had taken place in his worldly circumstances, and then wended toward headquarters to report.
The marvel of Nature shaking off sleep and going to work unfolded itself to the musing boy.
It was a very still Sabbath, and the mournful sound seemed in keeping with the musing hush that lay upon nature.
Then Alfred went musing into the deserted schoolhouse.
She put the jacket away, and stood by musing a minute.
While he was deep in his musings, Becky woke up with a breezy little laugh—but it was stricken dead upon her lips, and a groan followed it.
Tom went to bed that night planning vengeance against Alfred Temple; for with shame and repentance Becky had told him all, not forgetting her own treachery; but even the longing for vengeance had to give way, soon, to pleasanter musings, and he fell asleep at last with Becky’s latest words lingering dreamily in his ear— "Tom, how COULD you be so noble!"
There are no more uses of "muse" identified with this meaning in the book.
Show samples from other sources
He mused aloud about the afternoon’s developments.
Let me muse on it on a while and I’ll get back to you.