If you dream about seeing the jockey, then such dream indicates some unexpected present you will receive shortly. If the jockey was thrown away from the house, then such dream represents that your help will be asked by unknown people.
Dream dictionary: house and cars dream meanings
…(Column base | Plinth) A column base or a plinth in a dream represents scholars, their circles, or their study room. A column base in a dream also could represent unmarried women, one’s wife, knowledge, a trade, or a craft, or religious precepts. Building or owning a column base in a dream also could signify marriage, children, guidance, knowledge, or a chronic illness. The column base of a mosque in a dream represents pious people and the column base of a house represent chaste women….