Title insurance is your policy of protection against loss if any problems - even a unknown problems - results in a claim against your ownership. In extreme cases if a claim is filed against your property, you could lose your entire home and property - and still be liable to pay off the balance of your mortgage. Most claims aren't that intense, but even the smallest claim can cost you time, money and aggravation.
If a claim is made against your property, title insurance will, in accordance with the terms of your policy, assure you of a legal defense - and pay all court costs and related fees. Also, if the claim proves valid, you will be reimbursed for your actual loss up to the face amount of the policy.
Basically there are two different types of policies - a loan policy and an owner's policy. The loan policy protects the lender's interest in the property as security for the outstanding balance under the buyer's investment or equity in the property up to the face amount of the policy.