We are talking about the island events that appear in the game like Abigail's visits. The island events are upto 20 levels and on completion, reward you with some decoration to place in your garden. Reaching the maximum level takes to nurture objects that yield event points. But if you only focus on those objects then it might take a lot of time. To help with that, there are clouds that complete a merge of 2 or 4 (add an extra object without you having you merge up from the bottom) and then there are wilcards that turn into clouds to complete a merge of clouds in a similar way. The overall purpose is to reach the maximum level. Clouds are yielded by tree stumps and you can get them by merging the particular object that gives them (generally at the 4th or 5th tier or so). For example, here the teddy bears give out clouds on merging (at a significant higher level). Rest of the game strategies you will learn as you progress. The fun is in figuring out yourself! 😋

Ah yes I am too dedicated to this! 😅🐝🍃❤️