Why my screen won’t turn on

When you power on your phone from being off and all those sounds and vibrations that you hear and feel? Besides the beautiful colors on the screen that you see? Well just imagine that you can only HEAR and FEEL those sounds and vibrations but those beautiful colors that show up on the screen are still being empowered by the black swans. Lol yup so nothing on the screen turns on but you can hear it turning on and all that turning on good stuff these days