Often representing knowledge and success, keys also symbolize opening doors, perhaps to new possibilities. Since keys can open doors which are closed to anyone other than the key holder, someone might wear a key charm or necklace when looking for a new job. A perfect gift for someone who is transitioning in career or just starting their career!!
A key that is given between lovers is considered a symbol of unlocking the door to the heart. The giver of the key will be “lucky in love”.