Overflowing dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.
Interpretation 1 — Nancy Wagaman
Something overflowing its container (such as liquid overflowing a glass or a river overflowing its banks) can represent: Abundance (desired or not).
The idea of “too much.” A feeling or fear of an accident, catastrophe, or loss of control.
See Leaking, Bigger, Getting, Flood, Many
Source: The Curious Dreamer’s Dream Dictionary • Author: Nancy Wagaman
Interpretation 2 — Internet Archive - Anonymous
An excellent omen of financial success.
Source: Mystic Dream Book • Author: Internet Archive - Anonymous