Hatbox dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.
Interpretation 1 — Internet Archive - Anonymous
To dream of opening one denotes a gay occasion unless you find it empty, in which case it means disappointment about a festivity to which you will not be invited.
Source: Mystic Dream Book • Author: Internet Archive - Anonymous
Interpretation 2 — Stearn Robinson - Tom Corbett
A hatbox in your dream predicts a pleasant surprise, unless it was emp-ty, in which case it signifies a social disappointment.
Source: The Complete Guide to Interpreting Your Dreams • Author: Stearn Robinson - Tom Corbett