i always think of the scene in indiana jones where the torches dwindle and the snakes press toward indy and Marion.
Tough to translate to TTRPG play though. That scene works because we can watch it - if you describe the scene in a game, it basically loses the tension because of the format of tabletop play.
How you think it's going to go:
DM - "Indiana Jones and Marion are in a pit surrounded by darkness except for their lone sputtering torch. As the torch flickers, it casts dancing shadows across the forms of hundreds - possibly thousands - of snakes wriggling closer towards the two of them. The radius of the light begins to shrink as the torch dwindles to embers; as the radius shrinks, the snakes press in to fill the darkness and doom the pair to certain death."
Players gasp, curse, faint etc.
How it's actually going to go:
DM - "Indiana and Marion are trapped at the bottom of a dark well with their last torch, surrounded by the writhing-
Player 1: "Does the well have water in it? I thought we were in a desert? If there's water here I want to dive underneath"
DM - "No it's a dry, well more of a hole. Surrounding Marion and Indy are thousands of snakes that are being kept at bay by the sputtering light of the torch"
Player 2 - "Oh, are the snakes scared of light or something? I light another torch"
DM - "You have no more torches"
Player 1 - "I'm pretty sure I bought some in town... didn't I buy some?"
Player 2 - "Pretty sure"
Player 3 - "I Cast Light on a rope and throw it to the pair"
DM - "Wait guys... you're supposed be feeling tension"