The wrong end of the tunnel

Now I know how this happened:
We looked to the wrong end of the tunnel, all the time
No wonder why we didn´t found the light
It shone to our backs all the way while we walked further away

It´s not the time to fall into bittersweetness, no
At least we know where to go

I guess it´s hard
How we lost ourselves
Maybe we can catch our footsteps