Kṛṣṇa-kathā, or topics regarding Kṛṣṇa, are transcendental, and there is no satiation in hearing such topics. Bhagavad-gītā is important on account of its being kṛṣṇa-kathā, or speeches delivered by Lord Kṛṣṇa. The story of the Battle of Kurukṣetra may be interesting for the mass of people, but to a person like Vidura, who is highly advanced in devotional service, only kṛṣṇa-kathā and that which is dovetailed with kṛṣṇa-kathā is interesting.
(Srimad Bhagavatam-----3:5:10-----purport).

In other words, one who takes delight in hearing the war topics of the Lord is relieved from the chains of birth and death. Foolish people are suspicious of Kṛṣṇa's taking part in the Battle of Kurukṣetra, not knowing that His taking part insured liberation for all who were present on the battlefield. It is said by Bhīṣmadeva that all who were present on the Battlefield of Kurukṣetra attained their original spiritual existences after death. Therefore, hearing the war topics of the Lord is as good as any other devotional service.
(Srimad Bhagavatam-----3:14:5-----purport).

Kṛṣṇa is sometimes called vana-mālī. Vana means "forest," and mālī means "gardener," so vana-mālī refers to one who extensively uses flowers and garlands on different parts of His body. Kṛṣṇa was dressed like this not only in Vṛndāvana but also on the Battlefield of Kurukṣetra. Seeing such colorful dress and the garlands of different flowers, some great sages prayed, "Lord Kṛṣṇa was going to the Battlefield of Kurukṣetra not to fight, but to grace all of the devotees with His presence."
(Nectar of Devotion).

King Parīkṣit was especially interested in hearing kṛṣṇa-kathā because he knew that his forefathers, particularly his grandfather, Arjuna, were victorious in the great Battle of Kurukṣetra only because of Kṛṣṇa. We may also take this material world as a Battlefield of Kurukṣetra. Everyone is struggling hard for existence on this battlefield, and at every step there is danger. According to Mahārāja Parīkṣit, the Battlefield of Kurukṣetra was just like a vast ocean full of dangerous animals. His grandfather Arjuna had to fight with such great heroes as Bhīṣma, Droṇa, Karṇa and many others who were not ordinary fighters. Such warriors have been compared to the timiṅgila fish in the ocean. The timiṅgila fish can very easily swallow up big whales. The great fighters on the Battlefield of Kurukṣetra could swallow many, many Arjunas very easily, but simply due to Kṛṣṇa's mercy, Arjuna was able to kill all of them.
(Krsna Book).

Sañjaya was the personal assistant of Mahārāja Dhṛtarāṣṭra for a very long time, and thus he had the opportunity to study the life of Dhṛtarāṣṭra. And when he saw at last that Dhṛtarāṣṭra had left home without his knowledge, his sorrows had no bound. He was fully compassionate toward Dhṛtarāṣṭra because in the game of the Battle of Kurukṣetra, King Dhṛtarāṣṭra had lost everything, men and money, and at last the King and the Queen had to leave home in utter frustration. He studied the situation in his own way because he did not know that the inner vision of Dhṛtarāṣṭra has been awakened by Vidura and that therefore he had left home in enthusiastic cheerfulness for a better life after departure from the dark well of home. Unless one is convinced of a better life after renunciation of the present life, one cannot stick to the renounced order of life simply by artificial dress or staying out of the home.
(Srimad Bhagavatam-----1:13:35-----purport).

The virāṭ-rūpa of Lord Kṛṣṇa is also different from Him, by His inconceivable potency. The virāṭ-rūpa exhibited on the Battlefield of Kurukṣetra is the material conception of His form. Therefore it should be understood that when Lord Kṛṣṇa was apparently killed by the bow and arrow of the hunter, the Lord left His so-called material body in the material world. The Lord is kaivalya, and for Him there is no difference between matter and spirit because everything is created from Him.
(Srimad Bhagavatam-----1:14:8-----purport).

Queen Draupadī had a beautiful bunch of hair which was sanctified in the ceremonial function of Rājasūya-yajña. But when she was lost in a bet, Duḥśāsana touched her glorified hair to insult her. Draupadī then fell down at the lotus feet of Lord Kṛṣṇa, and Lord Kṛṣṇa decided that all the wives of Duḥśāsana and company should have their hair loosened as a result of the Battle of Kurukṣetra. Thus after the Battle of Kurukṣetra, after all the sons and grandsons of Dhṛtarāṣṭra died in battle, all the wives of the family were obliged to loosen their hair as widows. In other words, all the wives of the Kuru family became widows because of Duḥśāsana's insulting a great devotee of the Lord. The Lord can tolerate insults upon Himself by any miscreant because the father tolerates even insults from the son. But He never tolerates insults upon His devotees. By insulting a great soul, one has to forego all the results of pious acts and benedictions also.
(Srimad Bhagavatam-----1:15:10-----purport).

In the warfield, scarcity of water is a well-known fact. Water is very rare there, and both the animals and men, working strenuously on the warfield, constantly require water to quench their thirst. Especially wounded soldiers and generals feel very thirsty at the time of death, and it sometimes so happens that simply for want of water one has to die unavoidably. But such scarcity of water was solved in the Battle of Kurukṣetra by means of boring the ground. By God's grace, water can be easily obtained from any place if there is facility for boring the ground.
(Srimad Bhagavatam-----1:15:17-----purport).

Herein Arjuna refers to the instruction of the Bhagavad-gītā, which was imparted to him by the Lord on the Battlefield of Kurukṣetra. The Lord left behind Him the instructions of the Bhagavad-gītā not for the benefit of Arjuna alone, but also for all time and in all lands. The Bhagavad-gītā, being spoken by the Supreme Personality of Godhead, is the essence of all Vedic wisdom.
(Srimad Bhagavatam-----1:15:27-----purport).

It is put within the study of the great historical epic Mahābhārata, which was especially prepared for the less intelligent class, namely the women, the laborers and those who are worthless descendants of the brāhmaṇas, kṣatriyas and higher sections of the vaiśyas. The problem which arose in the heart of Arjuna on the Battlefield of Kurukṣetra was solved by the teachings of the Bhagavad-gītā. Again, after the departure of the Lord from the vision of earthly people, when Arjuna was face to face with being vanquished in his acquired power and prominence, he wanted again to remember the great teachings of the Bhagavad-gītā just to teach all concerned that the Bhagavad-gītā can be consulted in all critical times, not only for solace from all kinds of mental agonies, but also for the way out of great entanglements which may embarrass one in some critical hour.
(Srimad Bhagavatam-----1:15:27-----purport).

The Bhagavad-gītā begins with the problems of life by discriminating the soul from the elements of matter and proves by all reason and argument that the soul is indestructible in all circumstances and that the outer covering of matter, the body and the mind, change for another term of material existence which is full of miseries. The Bhagavad-gītā is therefore meant for terminating all different types of miseries, and Arjuna took shelter of this great knowledge, which had been imparted to him during the Kurukṣetra battle.
(Srimad Bhagavatam-----1:15:27-----purport).

Since the Lord is absolute, deep meditation upon Him is as good as yogic trance. The Lord is nondifferent from His name, form, quality, pastimes, entourage and specific actions. Arjuna began to think of the Lord's instructions to him on the Battlefield of Kurukṣetra. Only those instructions began to eliminate the tinges of material contamination in the mind of Arjuna. The Lord is like the sun; the sun's appearance means immediate dissipation of darkness, or ignorance, and the Lord's appearance within the mind of the devotee can at once drive away the miserable material effects.
(Srimad Bhagavatam-----1:15:28-----purport).

All pastimes or activities of the Lord are spiritual in nature, but to the laymen they appear to be on the same level with material activities. It so appeared that Arjuna and the Lord were engaged in the Battle of Kurukṣetra as the other party was also engaged, but factually the Lord was executing His mission of incarnation and association with His eternal friend Arjuna.
(Srimad Bhagavatam-----1:15:30-----purport).

One is not able to feel the presence of the Lord in all circumstances until one is endowed with the required transcendental vision made possible by devotional service prescribed in the revealed scriptures. Arjuna had attained this stage long before on the Battlefield of Kurukṣetra, and when he apparently felt the absence of the Lord, he at once took shelter of the instructions of the Bhagavad-gītā, and thus again he was placed in his original position.
(Srimad Bhagavatam-----1:15:31-----purport).

Lord Kṛṣṇa and His devotees are both on the transcendental plane; therefore the topics of Lord Kṛṣṇa and of His pure devotees are equally good. The Battle of Kurukṣetra is full of politics and diplomacy, but because the topics are related with Lord Kṛṣṇa, the Bhagavad-gītā is therefore adored all over the world. There is no need to eradicate politics, economics, sociology, etc., which are mundane to the mundaners.
(Srimad Bhagavatam-----1:16:6-----purport).

The devotees of the Lord are never in danger, but in the material world which is full of dangers at every step, the devotees are apparently placed into dangerous positions, and when they are saved by the Lord, the Lord is glorified. Lord Kṛṣṇa would not have been glorified as the speaker of the Bhagavad-gītā had His devotees like the Pāṇḍavas not been entangled in the Battlefield of Kurukṣetra. All such acts of the Lord were mentioned in the addresses of welcome, and Mahārāja Parīkṣit, in full satisfaction, rewarded those who presented such addresses.
(Srimad Bhagavatam-----1:16:13-15-----purport).

The pure devotee's mundane frustration is meant to elevate the devotee to a higher transcendental position. By placing Arjuna and the Pāṇḍavas in frustration due to the intrigue of their cousin-brothers, the prelude of the Battle of Kurukṣetra was created by the Lord. This was to incarnate the sound representative of the Lord, Bhagavad-gītā. So by placing King Parīkṣit in an awkward position, the incarnation of Śrīmad-Bhāgavatam was created by the will of the Lord.
(Srimad Bhagavatam-----1:18:31-----purport).

The Battle of Kurukṣetra, or any other battle at any place or at any time, is made by the will of the Lord, for no one can arrange such mass annihilation without the sanction of the Lord. The party of Duryodhana insulted Draupadī, a great devotee of Kṛṣṇa, and she appealed to the Lord as well as to all the silent observers of this unwarranted insult. Arjuna was then advised by the Lord to fight and take credit; otherwise the party of Duryodhana would be killed anyway by the will of the Lord.
(Srimad Bhagavatam-----2:5:17-----purport).

Actually, the Lord descended at the request of Brahmā in order to kill all the undesirables of the world, but to divide the share of glory He sometimes engaged His devotees to take the credit. The Battle of Kurukṣetra was designed by the Lord Himself, but just to give credit to His devotee Arjuna (nimitta-mātraṁ bhava savyasācin), He played the part of the charioteer, while Arjuna was given the chance to play the fighter and thus become the hero of the Battle of Kurukṣetra. What He wants to do Himself by His transcendental plans, He executes through His confidential devotees. That is the way of the Lord's mercy towards His pure unalloyed devotees.
(Srimad Bhagavatam-----3:3:10-----purport).

One who seeks shelter at the lotus feet of Lord Kṛṣṇa is immediately protected by the Lord. As the Lord promises in Bhagavad-gītā (18.66), ahaṁ tvāṁ sarva-pāpebhyo mokṣayiṣyāmi mā śucaḥ: "I shall deliver you from all sinful reactions. Do not fear." By taking shelter of Lord Kṛṣṇa, one comes under the safest protection. Thus when the Pāṇḍavas took shelter at the lotus feet of Kṛṣṇa, all of them were on the safe side of the Battlefield of Kurukṣetra. Parīkṣit Mahārāja, therefore, felt obliged to think of Kṛṣṇa in the last days of his life. This is the ideal result of Kṛṣṇa consciousness: ante nārāyaṇa-smṛtiḥ (S.B.2:1:6). If at the time of death one can remember Kṛṣṇa, one's life is successful.
(Srimad Bhagavatam-----10:1:5-7-----purport).