The progression of humanist philosophies which seek to explain the birth, purpose, and goal of humanity apart from a Holy God are inherently cynical.
The only thing a philosophy created by oneself and with oneself as it’s purpose can create is a myopia, a self-centeredness which can only result in a cynicism as one recognizes ones inability to affect meaningful change and to define a purpose beyond the pursuit of ones own security and pleasure.
Only when we realize that something outside us, something we do not have the power or ability to define or control, requires things of us, driving us on towards greater achievement in His plan, can we know realism and optimism.
Just as wise parents set boundaries and rules and encourage their children to learn and grow within those boundaries, focusing their copious energies on growing and thriving in beneficial directions. A beneficent God gives us freedom but also give voluntary rules and guidelines which when we abide by them allow us to focus our energies on growth in directions beneficial to us and bringing glory to Him.
Without a pole, the bean plant wallows in the dirt, losing it’s energies to molds and rot instead of focusing on growing beans. Without pruning, the fruit tree grows branches and flowers aplenty, and the fruit are many, but small and sour. Without focus, light spread everywhere, benefiting many, but when it is focused and directed as a laser beam, it’s power is magnified against even the strongest of elements.
Without direction and guidance, we grow haphazardly and without goal or purpose. Change is without weight and we fall into a cycle of attempted change, failure, disillusionment, and cynicism.