Endurance is fostered when determination is coupled with flexibility. Long-distance runners must adapt to changing conditions, while maintaining a strong sense of purpose. Two trees growing near each other bend and adapt to enhance each other’s survival. A strong image of durability is the stable marriage of intimate partners, which strikes a dynamic balance between involvement in the outside world and nourishment in the home.
True endurance is not based on rigidity, for endurance implies movement, not being locked in position. Only by adapting to change can we stay in the race, while only by deepening our sense of purpose can we call forth the fortitude to win it.
Continuity is achieved through movement, not by keeping still. That which has ceased to grow is moving toward death. Be actively changing, but stay strongly connected with your roots, your deepest thoughts and feelings.