What's at the end of the tunnel?

I've been dealing with this great darkness, inside and out. It's like I've lost it. There's no hope, even false ones. I can no longer control my mind. The negativity started controlling me. I tried to get out of here. I stumbled many times, but I got up and continued walking.

I don't know where I am, and I don't know where I am going. But I know I'm trying to find my way out, something I don't even know if it exists or not.

I'm getting weaker, and weaker. Every step keeps on getting heavier. I'm starving. I'm thirsty. I'm dying. but I kept on walking.

Alas!! I saw a light. But I can't barely move. I saw the light but I don't think I could make it.

I tried to pull myself together and I can see the light getting nearer and nearer.

I'm almost there.
I could finally get out of this darkness.

It's too late when I realized that the light at the end of the tunnel, is an oncoming train.