The gateway 'This Moment'

“Halt, dwarf!” said I. “Either I—or thou! I, however, am the stronger of the two:—thou knowest not mine abysmal thought! IT—couldst thou not endure!” Then happened that which made me lighter: for the dwarf sprang from…

Zarathustra throws down the dwarf and shows him a gateway called 'This Moment', where two eternal lanes meet. He reasons that all things, including the spider, the moonlight, and the two of them, must eternally return.

The name of the gateway is inscribed above: ‘This Moment.’

Zarathustra names the gateway where the two opposite lanes of eternity abut.