I have not heard of you need a SOL and a dream but the statement is just pointing at one having a SOL and hold for the long time and get profitability from it after a long time holding. This all still depends on how you plan your investment, buying at a low price, hold through the market ups and down and then sell when the market is at the peak during bull run. About memecoins;

The market is not trending as expected, so everything about cryptocurrency is down now including memecoins. Altcoins season are the moment everyone is waiting for but is seems not to be a realistic one anytime soon, so it makes the memecoin era as though never coming back again or if it would, may not come back with such momentum or high expectancy from it. Bitcoin movements predicts everything more but this bull run is not carrying along most altcoins with it, so it makes it unverifiable if altcoin season will ever come or even memecoins season will come again like it does.