In battlefield, it was a great ocean of fighting, and Bhisma, Drona, Karna, they were compared with big, big sharks, crocodiles in the ocean

Expressions researched:
"in battlefield, it was a great ocean of fighting, and Bhisma, Drona, Karna, they were compared with big, big sharks, crocodiles in the ocean"

Srimad-Bhagavatam Lectures

Bhīṣma was determined: "All right, let, let me kill my grandson." So in battlefield, it was a great ocean of fighting, and Bhīṣma, Droṇa, Karṇa, they were compared with big, big sharks, crocodiles in the ocean.

Lecture on SB 1.8.45 -- Mayapura, October 25, 1974:

Just like Bhīṣmadeva. Bhīṣmadeva is one of the recognized stalwart devotee of Kṛṣṇa, mahājana, authority. Whatever Bhīṣma will speak on devotional service, that is authoritative. All the twelve mahājanas... Svayambhūr nāradaḥ śambhuḥ kapilaḥ kumāro manuḥ prahlādo janako bhīṣmaḥ (SB 6.3.20). So Bhīṣma wanted to conquer over Kṛṣṇa. He promised. How he conquered, that you know, the story, that when Duryodhana showed some reluctance, that "My dear grandfather, you are not fighting with the Pāṇḍavas wholeheartedly because you have got affection for them. So you are on my side. You should fight wholeheartedly." A little criticizing. So to, in order to please Duryodhana, Bhīṣma promised that "Tomorrow I shall kill all the five brothers. Is that all right?" 'Yes, sir. Do that." "So they cannot be saved unless Kṛṣṇa breaks His promise." Kṛṣṇa said that... Both the parties were informed that "It is family fight. I cannot take part in the family. But I can divide Myself into two: My soldiers one side, and I am one side. But even if I am in one side, I'll not fight." So this was His promise, that He would not fight in the Battle of Kurukṣetra. But Bhīṣma obliged Him to fight, to break His promise in order to save Arjuna. Therefore Bhīṣma conquered over Kṛṣṇa, because He had to break His promise. Arjuna was in such a precarious condition that unless Kṛṣṇa would take up the weapon to stop Bhīṣma, Bhīṣma was determined: "All right, let, let me kill my grandson." So in battlefield, it was a great ocean of fighting, and Bhīṣma, Droṇa, Karṇa, they were compared with big, big sharks, crocodiles in the ocean. That was described by Parīkṣit Mahārāja, that "Only for Kṛṣṇa, my grandfather Arjuna was saved. Otherwise, it was impossible for my grandfather to conquer over the fight, to come out victorious. It is simply due to Kṛṣṇa."