If you pass away as a Plan member, your spouse or beneficiary will get a death benefit equal to the higher of the commuted value of your pension or 100% of your contributions.
Your pension benefits are generally "locked-in" and can't be withdrawn as cash. They must provide retirement income instead. There are some exceptions for small pensions, which depend on provincial rules. For example:
As an Active Plan member, you are not permitted to withdraw your vested pension account until your termination or retirement from your employment.