You can move your FHSA balance into your RRSP or RRIF without paying tax and without using your RRSP contribution room. The money will then continue growing for retirement.
Keep it invested until the maximum time
You can keep your FHSA open for up to 15 years or until the end of the year you turn 71 (whichever comes first), even if you don’t buy a home right away.
Withdraw the money (taxable)
You can take the money out in cash, but it will be added to your income and taxed, just like an RRSP withdrawal.