The Lord also said that the living entity is known as the kṣetra-jña, or "the knower of the field of activities." This is confirmed in the Thirteenth Chapter of the Bhagavad-gītā, where Kṛṣṇa describes the body as the field of activities and the living entity as the kṣetra-jña, the knower of that field. Although the living entity is constitutionally conversant with the spiritual energy, or has the potency to understand it, he is covered by the material energy and consequently believes himself to be the body. This false identification is called "false ego." Deluded by the false ego, the bewildered living entity in material existence passes through different bodies and suffers various kinds of miseries. Knowledge of the living entity's true position is possessed to different extents by different types of living entities.
In other words, it is to be understood that the living entity is part and parcel of the spiritual energy of the Supreme Lord. Because the material energy is inferior, man has the ability to get free from the covering of this material energy and utilize the spiritual energy. It is stated in the Bhagavad-gītā that in the conditioned state the superior energy (the living entity) is covered by the inferior energy. Due to this covering, the living entity is subjected to the miseries of the material world, and, in proportion to how much he is covered, he suffers material miseries. Those who are a little enlightened suffer less, but on the whole everyone is subjected to material miseries due to being covered by the material energy.