The failure of the past philosophers is largely the failure to see the self-evident.
Life exists to be a mystery.
Painful life is brutal and painless life is superficial.
God speaks to Man through his destiny.
The non-spatial nature of consciousness makes it possible for any apparently unconscious entity to be conscious, and vice versa.
I have far more reasons to rather disbelieve that a man besides me suffers when he cries, yet I have far more sentiments, than those great reasons, to instead weep for his, far less likely, sufferings.