Why won't my dead father come to me in a dream & tell me he is okay?

a few weeks ago my mom said she had a dream about my dead father they broke up in 2004 & they were never married just a little back ground info.

my mom says in the dream my dead father told her tell chris not to worry i'm fine.

why won't my dead father come to me in a dream & tell me that?

Why won't my dead father come to me in a dream & tell me he is okay?
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