Bra
To dream of a bra represents protection or security of power. Safekeeping of possibilities or abilities. It may also reflect preserving dignity or self-respect. Making an effort to look respectable. Not wanting to look easy or like you are willingly giving away your power.
Example: A girl dreamed of a guy she liked seeing her in her bra. In waking life this guy was fully aware that she liked him, but she was playing it smart with him. The guy seeing her in her bra reflected her awareness of the guy knowing she liked him while she held back her eagerness to date or be intimate. Showing interest while acting ladylike. Noticing her true feelings on display without wanting to look like a slut.
Example 2: A woman dreamed of seeing her deceased sister wearing a bra that was wet. In waking life she was trying to mitigate the embarrassment of her fiancee cancelling the wedding at the last minute to save respect for herself, but couldn't because everyone started to take the ex-fiancee's side and hate her. The wet bra may have reflected her attempts to tell her side of the embarrassing story of the relationships s failure to save dignity and not look like a loser.
