What is the difference between subject-matter of insurance and the subject-matter of a contract of fire insurance?

The main object of the contract of insurance is to indemnify the assured from the loss caused by damage or destruction by fire of the property of the assured. This physical object is called the subject matter of insurance. On the other hand, the subject-matter of contract of fire insurance is not the physical object or property of the assured but is money and money alone. It must be noted that what is insured is not the physical property of the assured but only loss of it by fire, because by this contract, loss by fire cannot be prevented. It is not an insurance against accidents but an agreement to protect against damage by a fire accident.