Darkness.
Thick, silent and overwhelming darkness engulfed them as soon as they stepped through the magical doors. Then comes afterwards the feel of free falling. All these occur briefly for a span of one minute before their feet touch the ground again.
On more than one occasions, Que had to steady herself from falling when she land back on her feet again. It wasn't the most convenient feeling, it's actually the least.
Imagine sitting in a bus with a reckless driver that was driving at full speed on a bumpy road then coming to a sudden halt. That's the feeling minus the blinding darkness.
When their feet touched the ground again and the darkness was replaced by brightness, they paused for a while to steady not just their feet but their spinning brains too. Wherever their destination was, it had white tiles with florescent lights.
:)