We need resources to Live and those are not only the basic ones: health through food and smartness/luck, but also to Live through the risk of believing and pursuing intimate ideas, also known as dreams.
All that happens to us, including our humiliations, our misfortunes, our deep sadness, it's energy to exist.
To have actual being; to be real.
To have life
To continue to be; to persist...
When sadness wins you over, one can feel guilty to exist, but also guilty for not fighting for living. Choosing to accept that to feel guilty is also to appreciate Life's immense value, helps turning sadness into a platonic love for all the experiences that happen to us, good or bad.
But here's the word, the concept, the thing we need and search our entire lives to feel we exist... be it platonic, dreamt, imagined, we need to feel Loved and Love.
"The greatest happiness of life is the conviction that we are loved"
In modern times...