A special business intrusted to a messenger; something to be told or done by one sent somewhere for the purpose; often, a verbal message; a commission; as, the servant was sent on an errand; to do an errand. Also, one's purpose in going anywhere.

Any specific task, usually of a routine nature, requiring some form of travel, usually locally. An errand is often on behalf of someone else, but sometimes for one's own purposes.

to take a short trip to do something for someone else

A straightforward obstacle dream. If you completed the errand, you can expect a satisfactory conclusion to your problems.

A mission.