While you can withdraw part of the cash value or take out a loan against it, enough money must remain in the cash value to pay for monthly insurance expenses. (insure.com)
A portion of each premium you pay becomes part of this cash value. (aigdirect.com)
This cash value means you can do things like borrow against your policy or cancel the policy for part of the cash value after a period of time. (policygenius.com)