You may be harboring some secrets.
A trap door indicates that there is a landscape below that is separated from the rest of your current consciousness. This can imply something that is being kept hidden. Your job is to determine what, if anything, is below you; do you know what it is, and how do you feel about the possibilities inherent in this structure? A trap door may suddenly swing open and capture someone, adding an element of risk and deceit to the mix.
[1]If you dream of falling through a trap door, your opponents will outwit you.
If you avoid it, you will not be tricked by your enemies.
If you use a trap door to trick someone, you will use deceit in real life to achieve what you want.
[2]To see some one emerging from a trap-door is a dream of a secret divulged; shut down it denotes mystery, hidden treasures, etc.
(Gypsy).
[3]A surprising and unpleasant letter, together with the loss of an important key, will worry you. Look for the latter in a wooden hiding-place.
[4]That particular door is an entrapment, i.E.
A tempting opportunity or invitation to do wrong
[5]