Kṛṣṇa is here advising Arjuna that he should not be disturbed by the different paths the soul can take when leaving the material world. A devotee of the Supreme Lord should not worry whether he will depart by arrangement or by accident. The devotee should be firmly established in Kṛṣṇa consciousness and chant Hare Kṛṣṇa. He should know that concern over either of these two paths is troublesome. The best way to be absorbed in Kṛṣṇa consciousness is to be always dovetailed in His service, and this will make one's path to the spiritual kingdom safe, certain and direct.
(Bhagavad-Gita---8:27---purport).

A person in Kṛṣṇa consciousness is always transcendental to the material modes of nature. He has no expectations for the result of the work entrusted to him, because he is above false ego and pride. Still, he is always enthusiastic till the completion of such work. He does not worry about the distress undertaken; he is always enthusiastic. He does not care for success or failure; he is equal in both distress and happiness. Such a worker is situated in the mode of goodness.
(Bhagavad-Gita---19:26---purport).

One should be attracted by the beautiful vision of Kṛṣṇa. His name is Kṛṣṇa because He is all-attractive. One who becomes attracted by the beautiful, all-powerful, omnipotent vision of Kṛṣṇa is fortunate. There are different kinds of transcendentalists—some of them are attached to the impersonal Brahman vision, some of them are attracted by the Supersoul feature, etc., but one who is attracted to the personal feature of the Supreme Personality of Godhead, and, above all, one who is attracted by the Supreme Personality of Godhead as Kṛṣṇa Himself, is the most perfect transcendentalist. In other words, devotional service to Kṛṣṇa, in full consciousness, is the most confidential part of knowledge, and this is the essence of the whole Bhagavad-gītā. Karma-yogīs, empiric philosophers, mystics and devotees are all called transcendentalists, but one who is a pure devotee is the best of all. The particular words used here, mā śucaḥ, "Don't fear, don't hesitate, don't worry," are very significant. One may be perplexed as to how one can give up all kinds of religious forms and simply surrender unto Kṛṣṇa, but such worry is useless.
(Bhagavad-Gita---18:66---purport).