All become miserable by exertion. But none knows this fact. The fortunate one, by this instruction, attains full redemption.
To experience something is one thing, but to be enriched by what it teaches or reveals is altogether different.
Our life needs and depends upon food and nourishment provided to the body. That builds energy in us, enabling us to live, move and exert. As we exert, the energy gets used up, and for restoring it further food and nourishment are needed. As food energizes us, so exertion exhausts us too. Strolling, even blinking and opening the eyes repeatedly, implies exertion.
Any exertion follows desire. Desire arouses grief, also fear of fulfilment. Desire fulfilled stimulates more desires. There is no end, cessation or final satisfaction. So exertion is no answer to our grief or dissatisfaction. But, alas, none discerns this fact. Even when told, none absorbs the lesson and is guided by it.
At the same time, the blessed one, like young Nachiketas before God of Death, or Rama before Sage Vasiṣṭha, absorbs the valued lesson instantly. He strives tenaciously to make it true of his life. Discrimination and yearning become quite pronounced in his life. Striving follows in all earnestness and intensity. He cuts across all desires and infatuations.
Doing sādhanā intensely, he proceeds vigorously and attains the much coveted redemption without difficulty or delay. It is all a question of responding earnestly to the right instruction at the right time.