A mortgage loan is a type of loan used to purchase property, where the property itself serves as security for the loan. In simple terms, you borrow money from a lender (like a bank) to buy a home, and in return, you agree to repay the loan in monthly installments, which include both the principal amount and interest. If you fail to repay, the lender has the right to take ownership of the property. Mortgages make it possible to own a home without paying the full price upfront.