When you take a loan against a whole life policy, the money doesn't come out of your policy. That one sentence does more work than anything else I explain at kitchen tables, so let's slow down and walk through it.
The insurance company lends you money from its general account, the same way a bank would. Your cash value never leaves the policy. It stays put, earning its guaranteed growth and any dividends the company declares, while serving as collateral for the loan. That's why there's no credit check and no application drama. The lender is about as protected as a lender can get. If you never pay the loan back, the company settles up from the death benefit later.
Because the cash value stays in the policy, compounding never gets interrupted. That's the feature people build whole strategies around. A dollar sitting in most accounts does one job. A dollar of cash value backing a policy loan is doing two, growing inside the contract while its borrowed twin goes out and pays off a truck or a tax bill.
Now the two ways people get this wrong. First, they treat loan interest like it doesn't exist. It does. The company charges interest at a rate spelled out in your contract, and if you don't pay it, it gets added to the loan balance and compounds against you. Second, they treat no required payments as no payments. A loan that's never repaid keeps growing in the background, and if it ever grows larger than the cash value, the policy can lapse. A lapse with a big loan outstanding can trigger a tax bill from the IRS on the gains. Flexibility is the feature. Neglect is the failure mode.
A word of caution: outstanding loans reduce the cash value you can use and the death benefit your family receives, and dividends aren't guaranteed. Any illustration that shows loans should be read with both of those in mind.
If the mechanics make sense and you're wondering what a well-designed policy looks like in practice, that's the whole purpose of our sister site Build a Life LOC. And if you want to see how a line of credit like this pairs with everyday cash flow, the Dynamic Banking method is built around exactly that.