lanterns

In response to becky’s squares: light.

A lantern is a portable source of lighting, typically featuring a protective enclosure for the light source—usually a candle or a wick in oil—to make it easier to carry and hang up, and make it more reliable outdoors or in drafty interiors.

portal

In response to dutch's prompt: portal. 
and in response to tourmaline's color your world: electric lime.