Periscope dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.
Interpretation 1 — Stearn Robinson - Tom Corbett
Surprising news from a distance is forecast in a dream of looking through, or seeing, a periscope.
Source: The Complete Guide to Interpreting Your Dreams • Author: Stearn Robinson - Tom Corbett
Interpretation 2 — Margaret Hamilton
Used for observation that is not deterred by obstructions or on the level
Source: Dream Dictionary Unlimited • Author: Margaret Hamilton