The narrative flow of a dungeon is probably a poor choice of words, but mainly it means that things occur in a dungeon the way they should. That includes random patrols, people hearing stuff happening in the next room, not being allowed to rest very easily unless very well hidden, an increased level of alertness if evidence of the killing of several of the other residents is discovered.
In other words, the idea that you can't rest in the the middle of the dungeon without consequence like you could in the Neverwinter Nights videogame. The idea that you can keep monsters from attacking you when you are weak simply but not opening up the next door.
These conventions are very common in D&D as it is played. Dungeon Masters generally do this because they want their players to have a good time, and generally having a party low on resources too early is very common. A DM who brings the hammer down on a diminished party that has no chance of surviving the next encounter because of those low resources generally doesn't remain a DM for very long.
I consider the facilitation of "dungeon narrative" by healing surges to generally be worth the slight loss of "verisimilitude" in exchange for a much more vibrant and active dungeon.
In other words, the idea that you can't rest in the the middle of the dungeon without consequence like you could in the Neverwinter Nights videogame. The idea that you can keep monsters from attacking you when you are weak simply but not opening up the next door.
These conventions are very common in D&D as it is played. Dungeon Masters generally do this because they want their players to have a good time, and generally having a party low on resources too early is very common. A DM who brings the hammer down on a diminished party that has no chance of surviving the next encounter because of those low resources generally doesn't remain a DM for very long.
I consider the facilitation of "dungeon narrative" by healing surges to generally be worth the slight loss of "verisimilitude" in exchange for a much more vibrant and active dungeon.