It the blackest night. It is the heart of darkness. It is the hunger that devours souls.
The Negative Energy Plane is a barren, empty place, a void without end, and a place of empty, endless night. Worse, it is a needy, greedy plane, sucking the life out of anything that is vulnerable. Heat, fire, and life itself are all drawn into the maw of this plane, which hungers for more.
To the observer, there's little to see on the Negative Energy Plane. It is a dark, empty place, an eternal pit where a traveler can fall until the plane itself steals away all light and life. The Negative Energy Plane is the most hostile of the Inner Planes, and the most uncaring and intolerant of life. Only creatures invulnerable to its life-draining energies may survive there, and even they have problems as the negative energy tugs at them imploringly.