
Policies may be offered as participating or non participating in the investment experience of the insurance company.
Participating policies show guaranteed values and premiums as well as non-guaranteed values. The non-guaranteed values are generated by regularly [usually annually] reviewing the results of investment, mortality and administration costs and crediting a portion [if not all] of that profit to the policyholders as a policy dividend.
It is fair to say that the participating policies illustrate their guaranteed values on a prospective basis and then adjust the values of a policy up on a retrospective basis to reflect their actual experience.