समदुःखसुखं धीरं सोऽमृतत्वाय कल्पते ॥ १५ ॥
yaṃ hi na vyathayantyete puruṣaṃ puruṣarṣabha .
samaduḥkhasukhaṃ dhīraṃ so’mṛtatvāya kalpate .. 15 ..
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That person to whom pleasure and pain are alike,—who neither exults in pleasure nor feels dejected in pain,—who is a man of wisdom, whom heat and cold and other things such as those mentioned above do not affect in virtue of his vision of the eternal Self,—that man, firm in his vision of the eternal Self and bearing calmly the pairs of opposites (such as heat and cold), is able to attain immortality (moksha). ‡
Though by endurance alone one may not be able to secure the highest human end, still, when coupled with discrimination and indifference to worldly objects and pleasures, it becomes a means to the right knowledge, which leads to deliverance. He who has satisfied all the conditions laid down can realize the nature of his own eternal Self, and then only is he fit for the final teaching that leads to deliverance.—(A).
The Real and the Unreal.
For the following reason also it is proper that thou shouldst abandon grief and distressful delusion and calmly endure heat and cold, etc. For,