The role of tea

We are speaking of tea as drunk by connoisseurs and not as generally served among shopkeepers.
No such nicety can be expected of general mankind or when tea is consumed by the gallon by all comers.
That is why the author of Ch’asu, Hsti Ts’eshu, says, "When there is a big party, with visitors coming and coming, one can only exchange with them cups of wine, and among strangers who have just met or among common friends, one should serve only tea of the ordinary quality.
When you enjoy your tea,normally,you would like share the “party” with someone,who is that? A friend,or a stranger? Why？