Cavern dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.
Interpretation 1 — Stearn Robinson - Tom Corbett
Another form of obstacle dream.
If you observed the cavern entrance from outside, you can expect that your circumstances will gradually improve; however, if you were in it (or fell into it) and couldn’t get out, you may be up against some hostile influences which could frustrate your ambitions.
The seriousness of your opposition would be indicated by the depth of the cave*L If it seemed very deep, you should reconsider your goal.
Source: The Complete Guide to Interpreting Your Dreams • Author: Stearn Robinson - Tom Corbett
Interpretation 2 — Ibn Seerin
(See Cave)
Source: Islamic Dream Interpretation • Author: Ibn Seerin