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Definitely tools, just like hands and legs.

The loss of a child has to be unbearable

A colleague of mine lost her 3 year old daughter a few years ago. As painful as it must be, it is bearable because she has another daughter that required her care and carried on. Emotions can be felt without them crippling or destroying us.

We are an incredible species. No matter how hard or the odds not being with us we tend to fight for life.
Even more sad for those who have no hope or someone to turn to.