What Does Dreaming of a Nail Mean?
Traditional Interpretation
In the tradition of Ibn Sirin and al-Nabulsi, the nail represents a firm bond joining people, affairs, and hearts to one another; keeping one's word; and a trustworthy friend. Nailing something down can point to gathering up a venture that is falling apart, to sealing an agreement, or to putting down roots and settling somewhere.
Psychological View
In modern psychology, the nail can symbolize the core relationships, responsibilities, and order that hold your life together; it may reflect your need to join two things, your being 'fixed' on a decision, or your wish to settle a matter once and for all. A bent or rusty nail can point to a strained bond, a suppressed tension, or a relationship in need of repair.
By Context
Driving in a Nail / Nailing Something Down
Can point to securing a venture, keeping your word, and bringing lasting order to your life; if you are single, it may reflect a wish to form a serious bond, and if married, a wish to strengthen the home.
A Bent, Rusty, or Broken Nail
According to Ibn Sirin, this can point to a weakening friendship, a loosening bond, or a venture that has not settled into place; it may be a relationship in need of review and repair.
Pulling Out / Removing a Nail
Can point to being freed from an obligation binding you to a place, to going back on an old decision, or to a need to end a relationship.
Seeing Many Nails
May be read as many responsibilities taken on, tasks that need to be brought together, or provision multiplying and order growing firm.