God is incomprehensible. He is so holy that anyone who look at Him will die immediately. We are part of His creation n are nobody to question Him. There are many who are certified dead by doctors yet came back to life again and said they met Jesus n was told to return to their lives again to testify what they saw.
Well I've been resuscitated three times myself.
Twice from heart attack once from a very bad fall.
None of those times was there ever a "bright light" or a "voice".
It was just black then I woke up in pain, like a dreamless sleep.
So I'm gonna say they are liars too, or they had hallucinations/dreams.
Also your perspective of God sounds similar to that of a child...
Is English not your first language?
(Not trying to be overly rude)