How do RBC North American Value Fund mutual funds actually generate returns?

I own units of the RBC North American Value Fund (100% equity), and I’m trying to better understand how investors actually benefit from this type of mutual fund. Is the main return simply the increase in the unit price (NAV) over time? I’ve also heard that any dividends from the underlying stocks are reinvested automatically rather than paid out in cash. For those who hold this fund: Do you mostly benefit from long-term price appreciation? Are dividends fully reinvested into the fund? Is there ever a cash payout, or is it all reflected in unit value? Appreciate any explanations or real-world experiences.