illuminates beneath the
starry sparkling skin
as his caliginous cloak
catapults strings of silver
The tanka pictures the scene of a meteor shower. The territory is that of the planet Earth and the cloak belongs to the sable sky.
The poem can also be conceived as an expression of love, wherein the act of a man who appears hard on the outside (dark cloak) opening up his soft inner self (silvery streaks) to his beloved would illuminate her world that is already sparkling with the bond they share.