<P> Suddenly surrounded by a carnival - like light tunnel , he sees hallucinations of his young son David , who died a few years prior from cancer . His son enthusiastically claims that he is alright and he should let God 's love fill him , proclaiming `` Let there be light ! '' as Dr. Harkens comes out of unconsciousness . After being clinically dead for 4 minutes , he awakens to find his Christian ex-wife at his side , and tells her that he saw their son . His doctor diagnoses his visions as merely adrenal brain surges that are caused in times of trauma . </P>
<P> Suddenly surrounded by a carnival - like light tunnel , he sees hallucinations of his young son David , who died a few years prior from cancer . His son enthusiastically claims that he is alright and he should let God 's love fill him , proclaiming `` Let there be light ! '' as Dr. Harkens comes out of unconsciousness . After being clinically dead for 4 minutes , he awakens to find his Christian ex-wife at his side , and tells her that he saw their son . His doctor diagnoses his visions as merely adrenal brain surges that are caused in times of trauma . </P>
who sings let there be light in the movie let there be light
who sings let there be light in the movie let there be light
his young son David , who died a few years prior from cancer
his young son David , who died a few years prior from cancer