We have, quite rightly, concentrated on buying opportunities because dividend investors should be looking to the long term. It is important to remember that you are investing principally, or entirely, for dividends and you should not allow yourself to be distracted by swings in share prices.
You will see many swings in both directions over a lifetime of investing. Like water, the stock market gradually finds its own level.
Do not make the mistake, as so many investors do, of being panicked into selling shares after heavy falls as you are likely to be getting out at the bottom of the market and will be forced to buy back in at higher levels.
However, that is not an excuse for burying your head in the sand. Unless ...