O son of Pṛthā, those who are not deluded, the great souls, are under the protection of the divine nature. They are fully engaged in devotional service because they know Me as the Supreme Personality of Godhead, original and inexhaustible."
The word mahātmā refers to those who are broadminded, not cripple-minded. Cripple-minded persons, always engaged in satisfying their senses, sometimes expand their activities in order to do good for others through some "ism" like nationalism, humanitarianism or altruism. They may reject personal sense gratification for the sense gratification of others, like the members of their family, community or society—either national or international. Actually all this is extended sense gratification, from personal to communal to social. This may all be very good from the material point of view, but such activities have no spiritual value. The basis of such activity is sense gratification, either personal or extended. Only when a person gratifies the senses of the Supreme Lord can he be called a mahātmā, or broadminded person.
In the above-quoted verse from Bhagavad-gītā, the words daivīṁ prakṛtim refer to the control of the internal potency, or pleasure potency, of the Supreme Personality of Godhead. This pleasure potency is manifested as Śrīmatī Rādhārāṇī, or Her expansion Lakṣmī, the goddess of fortune. When the individual jīva souls are under the control of the internal energy, their only engagement is the satisfaction of Kṛṣṇa, or Viṣṇu. This is the position of a mahātmā. If one is not a mahātmā, he is a durātmā, or a cripple-minded person. Such mentally crippled durātmās are put under the control of the Lord's external potency, mahāmāyā.
Indeed, all living entities within this material world are under the control of mahāmāyā, whose business is to subject them to the influence of threefold miseries: adhidaivika-kleśa (sufferings caused by the demigods, such as droughts, earthquakes and storms), adhibhautika-kleśa (sufferings caused by other living entities like insects or enemies), and adhyātmika-kleśa (sufferings caused by one's own body and mind, such as mental and physical infirmities). Daiva-bhūtātma-hetavaḥ: the conditioned souls, subjected to these three miseries by the control of the external energy, suffer various difficulties.
The main problem confronting the conditioned souls is the repetition of birth, old age, disease and death. In the material world one has to work for the maintenance of the body and soul, but how can one perform such work in a way that is favorable for the execution of Kṛṣṇa consciousness?
Everyone requires possessions such as food grains, clothing, money and other things necessary for the maintenance of the body, but one should not collect more than necessary for his actual basic needs. If this natural principle is followed, there will be no difficulty in maintaining the body.
According to nature's arrangement, living entities lower on the evolutionary scale do not eat or collect more than necessary. Consequently in the animal kingdom there is generally no economic problem or scarcity of necessities. If a bag of rice is placed in a public place, birds will come to eat a few grains and go away. A human being, however, will take away the whole bag. He will eat all his stomach can hold and then try to keep the rest in storage. According to scriptures, this collecting of more than necessary (atyāhāra) is prohibited. Now the entire world is suffering because of it.