A door is a movable structure used to open and close an entrance, typically consisting of a panel that swings on hinges or that slides or spins inside a space. (© Wikipedia)
But for me, a door can also be untypical and somehow invisible. It can open to new adventures, new experiences, new feelings, new people, new environments.
Wikipedia goes on: "When open, doors admit people, animals, ventilation, and light. The door is used to control the physical atmosphere within a space by enclosing the air drafts, so that interiors may be more effectively heated or cooled. Doors are significant in preventing the spread of fire. They act as a barrier to noise. Many doors are equipped with locking mechanisms to allow entrance to certain people and keep out others."
Doors prevent a spread of fire. Therefore, metaphorically speaking the fire could be the new things. Fire is bad, because it can destroy so much. But doesn't fire also symbolize energy, power, action and passion? Are these bad things? It's exactly like life. When a door opens, it can be a whole new possibility, but it can also destroy so much.
"Many doors are equipped with locking mechanisms to allow entrance to certain people and keep out others"
Some people need to lock themselves behind doors to feel safe. Opening these doors can be dangerous because one is vulnerable. But it can also open up to a new relationship that might mean so much.
They also say, once you've opened a door, you can never go back. This is also only partly true. One can never forget the experiences, acquaintances made, but if it feels uncomfortable, one can hide behind these doors again. Maybe just to have time to think it over. To realise, that these new possibilities are good.
Maybe all this is the reasen why I take so many pictures of doors ;) Big, small, welcoming, scary, open, closed, cute, bold,....I could go on and on!
(Sources: Door, Fire symbols and meanings, Pictures: Mine)