I run a multidimensional (Sliders-like) campaign, and every time the players do a transit they are given a momentary glance at another reality. My personal favorite of these has been:

For a moment you're all sat around a table. The smell of pasta and garlic hang strongly in the air. You have this sensation that, while you're here, you're family. Someone one sets down a basket of bread sticks... and you arrive at your destination.