The quote by C.G. Jung from his book "Memories, Dreams, Reflections" suggests that those who choose a predictable and risk-free path in life may miss out on true personal growth and fulfillment. By avoiding challenges and sticking to the familiar, individuals may become stagnant and lose their vitality, as they fail to engage with the deeper aspects of existence that come from exploring the unknown.

This idea emphasizes the importance of embracing uncertainty and taking risks. Jung believed that personal development often requires stepping outside one's comfort zone, which can lead to a richer, more meaningful life. Rather than adhering to the 'sure road', it is through overcoming obstacles and confronting fears that individuals can truly thrive and realize their potential.