Lyric discussion by Ninchuser 

Cover art for Can You Feel My Heart? lyrics by Bring Me the Horizon

I honestly think this song is about depression.

Can you hear the silence

He is so depressed he's drowning in his own thoughts and can't mentally hear anything

Can you see the dark?

He's surrounded by darkness

Can you fix the broken?

He has become a broken person

Can you feel my heart?

It feels to him like his heart stopped beating

Can you help the hopeless? Well, I'm begging on my knees.

He feels hopeless because he can't get out of his downward spiral, and is begging someone to help him

Can you save my bastard soul?

He feels like his soul has been deformed by his depression

Will you wait for me?

He asks someone to wait 'till he comes out of that state of mind

I'm sorry brothers, so sorry lover, forgive me father, I love you mother

He's asking for their forgiveness because he has done, or is about to do, something terrible

I'm scared to get close, and I hate being alone

He's afraid that, if he gets close, he'll be hurt by that person, but he doesn't like to be alone

I long for that feeling to not feel at all

He wants to stop feeling and forget about everything

The higher I get, the lower I'll sink

If he has a peak in his recovery, he'll have a bigger fall

I can't drown my demons, they know how to swim

He's talking about his thoughts, and how he has tried to shut them up, but they always come back

@Ninchuser i think that's what the song is referring to