I must have listened to this song hundreds of times by now, but I still feel all of the emotion every single time. It just never gets old, and it's such a powerful song to get your emotions out in times of grief, depression, or other struggles.
The instrumentation is both simple, complicated and unique at the same time, which is a really uncommon combination. All the guitar parts are simple, but also sound like no other song I've ever heard. The drums are almost overkill, but somehow manage to still fit the song well, probably due to the sheer amount of emotion throughout the song. And the band also leave room for the bass at times, as if Gojira's bassist doesn't energize the audience enough already.
The intro riff is quite simple and mainly serves the purpose of setting the very heavy atmosphere, but also keeps the song interesting by the use of a whammy pedal. The chorus riff is also simple, but it is extremely catchy. I will likely never get bored of the chorus even if I listen to the song thousands of times. And really the rest of the guitar work is also simple, but so effective at conveying emotion.
The vocals in this song are the perfect type of heavy - they deliver the intense emotion incredibly well, but at the same time, you can hear the lyrics, and it sounds very human despite the harshness, and I also like the dynamics in the vocals towards the end of the song.
Speaking of which, the song structure is also one of a kind. It has choruses, but the verses are very different, both vocally, lyrically and instrumentally. I think it's very much shaped around how grief progresses over time. The intro is like the reality of the situation starting to sink in and work its way inside you. The first verse feels like the overwhelming flood of emotions that comes right after that, while the second verse feels more desperate and empty. The final verse, or the outro, is a continuation of the emptiness felt earlier, but after you've exhausted all your energy and can barely think or feel anymore. The very last line of the song builds up the intensity again, like when you finally start regaining your energy, you're struck by the same wall of emotions again.
In summary, I cannot think of a song that represents the feelings of grief better than this, and there isn't a single bad part in this entire song, so it easily gets a 10/10 from me. Even though I started listening to metal not that long ago, this song has already helped me through multiple tough times. It's really important to get your emotions out somehow in times of grief or depression, which you can do by listening to, playing or singing a song like this.