Gokula’s Wonder, Kṛṣṇa’s Bhakta-vaśyatā, the Move to Vṛndāvana, and the Slaying of Vatsāsura and Bakāsura
तं वत्सरूपिणं वीक्ष्य वत्सयूथगतं हरि: । दर्शयन् बलदेवाय शनैर्मुग्ध इवासदत् ॥ ४२ ॥
taṁ vatsa-rūpiṇaṁ vīkṣya vatsa-yūtha-gataṁ hariḥ darśayan baladevāya śanair mugdha ivāsadat
至上主ハリは、その魔が子牛の姿となって子牛の群れに紛れ込んだのを見て、バラデーヴァに示し「これもまた魔だ」と告げた。ついで、その意図を知らぬかのように、無邪気にゆっくりと近づかれた。
The import of the words mugdha iva is that although Kṛṣṇa knows everything, here He pretended that He did not understand why the demon had entered among the calves, and He informed Baladeva by a sign.
It describes Vatsāsura entering the calf-herd in disguise, and Kṛṣṇa immediately recognizing him and moving in to deal with him while alerting Balarāma.
To inform Balarāma of the disguised danger within the herd, showing their coordinated protection of Vraja even while Kṛṣṇa outwardly acted like an innocent child.
Be alert to hidden threats, but respond calmly and thoughtfully—protecting others without panic, pride, or unnecessary display.