Well you only need the light when it's burning low
Only miss the sun when it starts to snow
Only know you love her when you let her go
Only know you've been high when you're feeling low
Only hate the road when you're missing home
The examples given in these lines express the idea of only appreciating and treasuring something once it has been lost.
To help improve the meaning of these lyrics, visit "Let Her Go" by Passenger Lyrics and leave a comment on the lyrics box