Maniac dream meaning is explained below using 3 different sources. Each interpretation is shown with its source.

Interpretation 1 — DreamForth

To dream of a maniac suggests a situation in your waking life may be pushing you over the edge.

To dream of yourself as a maniac indicates that it may be time to hand over control and take a break from a current work project.

To dream of yourself or another person suddenly becoming maniacal implies that you have resentment and you may need to examine stress levels in your waking life.

Source: Dream Symbols and Analysis Author: DreamForth

Interpretation 2 — Stearn Robinson - Tom Corbett

See Insanity.
Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 3 — Margaret Hamilton

See “crazy”
Source: Dream Dictionary Unlimited Author: Margaret Hamilton