Розвидняється means 'dawns' or 'brightens'. It's a beautiful and evocative verb that describes the transition from night to day.
In the song, it sets a hopeful and gentle tone, as the lyrics describe the morning light appearing and a new day beginning. It's a less common word than simply 'morning' and paints a more vivid picture of the sunrise.
This is a bright, breezy love song about mornings and the changing seasons. Each verse opens the same way: something in the world begins or shifts (night dissolving, stars hiding, spring undressing itself in warm rain), and the singer wakes to find their loved one there beside them, smiling.
The chorus is the heart of the song: the singer compares the person they love to summer and to wind — warm, light, impossible to hold onto in a fixed shape, and always making their heart beat wildly ("crazy hearts beating"). It's a simple, sensory way of describing being in love: like weather, like a season, something you feel everywhere at once.
The repeated "la-la-la" sections work like a hummed bridge between verses, letting the melody breathe between the more descriptive lines about mornings, love, and the turn of the seasons.