A Bright Beginning?

I was sleeping pecefully when bright flashes of light brightened my entire room and coupled with rumblings, I thought that it was a heavy thunderstorm. I slid my window to one side and I realised what all that commotion is about. Exactly a year ago, this had happened. This year although smaller scale, it has happened again. What am I talking about?

Fireworks bursting forth in the sky while I lie down in the comforts of my bed and taking in the brilliance of lights and colours.