You will notice that, the closer you are to light, the greater your shadow becomes. Allah سبحانه وتعالى is the light. Taqwa is your shadow.
Meanwhile, if you turn away from the light, your shadow will leave you and with this you will find yourself in total darkness and total darkness signify danger which is Hellfire.
It’s never to late for us to turn back to An-Nur. SubhanAllah, He loves us and proud of us as the believers. He is oft-forgiven, and Most Merciful.