A mortgage is a loan you take out to buy a home. This loan covers the principal (purchase price of the house minus your down payment) plus the interest, which is the fee a lender charges you to borrow the money.
Mortgage is the most widespread industry that offered to loan borrowers with real estate as collateral. Mortgage has so many innovations and opportunities that a loan borrower can exploit them for their own benefit. You must have heard and read it elsewher