The person in false ego takes all credit for doing everything independently, and that is the symptom of his nescience. He does not know that this gross and subtle body is the creation of material nature, under the order of the Supreme Personality of Godhead, and as such his bodily and mental activities should be engaged in the service of Kṛṣṇa, in Kṛṣṇa consciousness. The ignorant man forgets that the Supreme Personality of Godhead is known as Hṛṣīkeśa, or the master of the senses of the material body, for due to his long misuse of the senses in sense gratification, he is factually bewildered by the false ego, which makes him forget his eternal relationship with Kṛṣṇa.
(Bhagavad-Gita---3:27---purport).

To understand Kṛṣṇa consciousness and action according to its modes, one has to learn one's relationship with the Supreme; i.e., one who has learned perfectly knows that every living entity is an eternal servitor of the Lord and that consequently one has to act in Kṛṣṇa consciousness. The entire Bhagavad-gītā is directed toward this conclusion. Any other conclusions, against this consciousness and its attendant actions, are vikarmas, or prohibited actions. To understand all this one has to associate with authorities in Kṛṣṇa consciousness and learn the secret from them; this is as good as learning from the Lord directly. Otherwise, even the most intelligent persons will be bewildered.
(Bhagavad-Gita--4:17--purport).

Asammoha, freedom from doubt and delusion, can be achieved when one is not hesitant and when he understands the transcendental philosophy. Slowly but surely he becomes free from bewilderment. Nothing should be accepted blindly; everything should be accepted with care and with caution. Kṣamā, tolerance and forgiveness, should be practiced; one should be tolerant and excuse the minor offenses of others. Satyam, truthfulness, means that facts should be presented as they are, for the benefit of others.
(Bhagavad-Gita--10:4-5---purport).

The symptoms of the self-realized person are given herein. The first symptom is that he is not illusioned by the false identification of the body with his true self. He knows perfectly well that he is not this body, but is the fragmental portion of the Supreme Personality of Godhead. He is therefore not joyful in achieving something, nor does he lament in losing anything which is related to his body. This steadiness of mind is called sthira-buddhi, or self-intelligence. He is therefore never bewildered by mistaking the gross body for the soul, nor does he accept the body as permanent and disregard the existence of the soul. This knowledge elevates him to the station of knowing the complete science of the Absolute Truth, namely Brahman, Paramātmā and Bhagavān.
(Bhagavad-Gita---5:20---purport).