Mental energy can be increased through the stress and conditioning method, through challenging mental study and tasks, deep learning and creative activities.
心理能量可以过压力和调节方法，通过富有挑战性的精神研究和任务，通过深入学习和创作活动来加强。
2
Undertaking conditioning and progressive increments of stress followed by deep restoration we can even expand our capacity for energy.
通过调节和逐渐的增加压力，然后深度恢复之后，我们甚至可以扩大精力的能力。
3
Undertaking conditioning and progressive increments ofstress followed by deep restoration we can even expand our capacity forenergy.