The old man lives a comfortable life of constant attention at his son's home.
Tips
history
From Wu Cheng'en's《西游记》(Journey to the West), Chapter 26: 'serve our master well, with three teas and six meals daily, never short of anything.' The expression 三茶六饭 came to mean total, gracious provision for a guest.
memory
Don't read 'three' and 'six' as exact counts — like 七上八下 or 三长两短, the numbers just signal abundance and care. Picture three rounds of tea framing six unhurried meals.