在传统中医的视角中，人类的意志力与脾肾功能的强弱息息相关。
脾，为后天之本，主运化水谷精微，滋养四肢百骸；肾，则藏先天之精，主生长发育与生殖，更是精神活动的根基。
当脾肾功能强健时，人的意志力自然坚定，有如磐石，无论面对何种挑战都能泰然处之，坚持不懈；反之，若脾肾虚弱，人的意志力也会如同细沙般容易溃散，难以持久。
因此，中医养生之道强调养护脾肾，以此来强化人的意志力，使其在面对生活的种种挑战时，能够保持坚韧不拔的精神状态。
In the perspective of traditional Chinese medicine, human willpower is closely related to the strength of spleen and kidney function.
The spleen is the foundation of nurture, responsible for transporting and transforming water and grain essence, nourishing all limbs and bones; The kidney, on the other hand, stores the essence of innate growth, development, and reproduction, and is the foundation of mental activity.
When the spleen and kidney function is strong, a person's willpower is naturally firm, like a rock, able to handle any challenge calmly and persistently; On the contrary, if the spleen and kidneys are weak, a person's willpower will also easily disintegrate like fine sand, making it difficult to sustain.
Therefore, traditional Chinese medicine emphasizes the maintenance of the spleen and kidneys in order to strengthen human willpower and maintain a resilient mental state in the face of various challenges in life.