When the Sun Goes In

Blogista: Ya ta ta when the ya ta...
Readers: You're bored, aren't you?
Blogista: Yes.
Readers: So you've posted a fillum which will vanish for ever with its YouTube account and leave your readers perplexed as to what the point was.
Blogista: Ahem... 
Think, in this batter'd Caravanserai
Whose Doorways are alternate Night and Day,
How Sultan after Sultan with his Pomp
Abode his Hour or two, and went his way.