To dream of a crevice represents feelings about opportunities that are barely available to you. Feeling that you can just barely do something on your own or barely reach your goal by yourself. A small opening in a situation.
Negatively, a crevice may reflect feelings about a opportunity that is barely available, but dangerous to pursue. Awareness of yourself taking a risk to explore something or pursue a goal. Alternatively, it may reflect a dangerous opportunity or risky goal that is best left alone.
Positively, a crevice may reflect a dangerous situation that provides an excellent opportunity or excuse to address it. Feeling that a new problem or crises has created an opening for you. Alternatively, a crevice may represent feelings that something difficult is possible, but won’t be easy.