“There are twin Gates of Sleep. One, they say, is called the Gate of Horn and it offers easy passage to all true shades. The other glistens with ivory, radiant, flawless, but through it the dead send false dreams up toward the sky. And here Anchises, his vision told in full, escorts his son and Sibyl both and shows them out now through the Ivory Gate.”
“Dreams surely are difficult, confusing, and not everything in them is brought to pass for mankind. For fleeting dreams have two gates: one is fashioned of horn and one of ivory. Those which pass through the one of sawn ivory are deceptive, bringing tidings which come to nought, but those which issue from the one of polished horn bring true results when a mortal sees them.”
“That's why there are ten gates to pass through before you reach the garden. If life were easy there would be one gate. There would be no gates at all.”
“If this was what Mikhail called opening the gate close to Zayvion’s body, I was going to kill a compass and a slide rule and send them through the gates of death to him.”
“You get your visions through whatever gate you're granted.”
“Yog-Sothoth knows the gate. Yog-Sothoth is the gate. Yog-Sothoth is the key and guardian of the gate. Past, present, future, all are one in Yog-Sothoth. He knows where the Old Ones broke through of old, and where They shall break through again. He knows where They have trod earth's fields, and where They still tread them, and why no one can behold Them as They tread.”