No one can be undisturbed unless he is perfectly spiritually realized, at which time one neither hankers nor laments for anything

Expressions researched:
"No one can be undisturbed unless he is perfectly spiritually realized, at which time one neither hankers nor laments for anything"

Sri Isopanisad

No one can be undisturbed unless he is perfectly spiritually realized, at which time one neither hankers nor laments for anything. A dhīra realizes that the material body and mind he has acquired by chance through material association are but foreign elements; therefore he simply makes the best use of a bad bargain.

Sri Isopanisad 10, Purport:

There are innumerable suns and innumerable planetary systems also. As infinitesimal parts and parcels of the Supreme Lord, we small creatures are trying to dominate these unlimited planets. Thus we take repeated birth and death and are generally frustrated by old age and disease. The span of human life is scheduled for about a hundred years, although it is gradually decreasing to twenty or thirty years. Thanks to the culture of nescience, befooled men have created their own nations within these planets in order to grasp sense enjoyment more effectively for these few years. Such foolish people draw up various plans to render national demarcations perfectly, a task that is totally impossible. Yet for this purpose each and every nation has become a source of anxiety for others. More than fifty percent of a nation's energy is devoted to defense measures and thus spoiled. No one cares for the cultivation of real knowledge, yet people are falsely proud of being advanced in both material and spiritual knowledge.

Śrī Īśopaniṣad warns us of this faulty type of education, and the Bhagavad-gītā gives instructions as to the development of real knowledge. This mantra states that the instructions of vidyā (knowledge) must be acquired from a dhīra. A dhīra is one who is not disturbed by material illusion. No one can be undisturbed unless he is perfectly spiritually realized, at which time one neither hankers nor laments for anything. A dhīra realizes that the material body and mind he has acquired by chance through material association are but foreign elements; therefore he simply makes the best use of a bad bargain.

The material body and mind are bad bargains for the spiritual living entity. The living entity has actual functions in the living, spiritual world, but this material world is dead. As long as the living spiritual sparks manipulate the dead lumps of matter, the dead world appears to be a living world. Actually it is the living souls, the parts and parcels of the supreme living being, who move the world. The dhīras have come to know all these facts by hearing them from superior authorities and have realized this knowledge by following the regulative principles.

To follow the regulative principles, one must take shelter of a bona fide spiritual master. The transcendental message and regulative principles come down from the spiritual master to the disciple. Such knowledge does not come in the hazardous way of nescient education. One can become a dhīra only by submissively hearing from a bona fide spiritual master. Arjuna, for example, became a dhīra by submissively hearing from Lord Kṛṣṇa, the Personality of Godhead Himself. Thus the perfect disciple must be like Arjuna, and the spiritual master must be as good as the Lord Himself. This is the process of learning vidyā (knowledge) from the dhīra (the undisturbed).