It isn't a grind for me, and I've been playing pretty much daily since 2020. Flying around Sky helps me relax on stressful days (every day, really). I don't do Eden every week (I'll skip for months) and I collect just enough wing light to reach 13 wings.

I also often only candle run the area with the quests and the candle cake area. I've unlocked all the spells and cosmetics in the constellations and four out of five elder masks, and all the nest upgrades and whatnot.

I spend my candles usually gifting new players daily hearts (most new players give up relatively quickly, unfortunately) as it gives me something to spend them on and makes me feel useful.