How is a life insurance policy useful?

Planning for the financial consequences of a premature death is an essential part of every financial plan. Generally, the consequences are simply too large to ignore and cannot be totally covered with your own resources.
Life insurance is nothing but a contract with an insurance company under which the insured (purchaser) pays a premium in exchange for coverage of specified losses. Life insurance protects your family against the risk of the premature death of you (or your spouse). Life insurance planning should consider your family's short-term needs (for example, medical expenses) and long-term needs (for example, replacing your income).
In the course of our life we are accosted by risk-that of failing health, financial losses, accidents and so on. Insurance is a means by which life's uncertainties are addressed in financial terms. It offers a monetary compensation against those losses. Insurance is considered more as a hedging mechanism rather than a true investment avenue. Life insurance, in particular is essentially acknowledged as a mechanism which eliminates risk substituting certainty for uncertainty primarily by transferring risk from the insured to the insurer.