In plain words
So even if doubts come, hold fast to the faith that this is the story of God and there is no doubt whatever. In works done for the uplift of the world, God has to play a drama in certain circumstances. Keeping the protection of devotees on one side and the goal of establishing Dharma in another place, and with just these three in view, He sets about actions we do not understand. Here, then, is another example of His playing dramas of some kinds for the sake of a protection. On the last day of the Bhārata war, all the Kauravas had perished. At that time Duryodhana was left. Aśvatthāmā, that Duryodhana's friend, went to him. Duryodhana held Aśvatthāmā in a tight embrace: ‘What! At this end, as I am about to give up my life, what help will you give me? Do me some help; speak courage to me,’ he begged. At that time Aśvatthāmā: ‘In this one night alone ninety-nine of your brothers have gone, so I take the vow to destroy these Pāṇḍavas. Before the night is even out I will destroy the Pāṇḍavas,’ he swore, and at once went to the temple and kept praying to the goddess Kālī. Kālī, in a voice without a body, said to this Aśvatthāmā: ‘Aśvatthāmā! You will win no victory at all in killing the Pāṇḍavas. The Pāṇḍavas are great embodiments of Dharma. Dharma itself is protecting them. Killing them is beyond you,’ She counselled. But Aśvatthāmā, gripped by stubbornness, said, ‘Whatever it may be, give me Your blessings.’ ‘I am indeed giving My blessings to all. But victory and defeat rest on each one's own dharma,’ She said, and sent him away. But this promise Aśvatthāmā had given Duryodhana was known to Kṛṣṇa alone. Thinking to play a drama of some kind, Kṛṣṇa at once went to Durvāsa. When He reached Durvāsa, Durvāsa, seeing that Kṛṣṇa Paramātma had come to his āśrama, honoured Him in many ways with ‘Paramātma! You have come to my āśrama!’, offered Him a fitting seat and asked the reason for the Lord's coming.