Text 25]
The Killing of the Demon Aghāsura
287
PURPORT
After talking about the terrible animal this way and that way, they decided to enter the demon's mouth. They had full faith in Kṛṣṇa because they had experienced how Kṛṣṇa had saved them from the mouth of Bakāsura. Now, here was another  asura , Aghāsura. Therefore, they wanted to enjoy the sport of entering the demon's mouth and being saved by Kṛṣṇa, the enemy of Bakāsura.
TEXT 25
इत्थं मिथोऽतथ्यमतज्ज्ञभाषितं 
    श्रुत्वा विचिन्त्येत्यमृषा मृषायते । 
    रक्षो विदित्वाखिलभूतहृत्स्थितः 
    स्वानां निरोद्धुं भगवान् मनो दधे ॥२५॥
ittham mitho 'tathyam ataj-jña-bhāṣitam  
 śrutvā vicintyety amṛṣā mṛṣāyate  
 rakṣo viditvākhila-bhūta-hṛt-sthitaḥ  
 svānām niroddhum bhagavān mano dadhe
ittham —in this way;  mithaḥ —or another;  atathyam —a subject matter that is not a fact;  a-tat-jña —without knowledge;  bhāṣitam —while they were talking;  śrutvā —Kṛṣṇa hearing them;  vicintya —thinking;  iti —thus;  amṛṣā —actually, truly;  mṛṣāyate —who is trying to appear as a false thing (actually the animal was Aghāsura, but because of poor knowledge they were thinking him to be a dead python);  rakṣaḥ —(Kṛṣṇa, however, could understand that) he was a demon;  viditvā —knowing it;  akhila-bhūta-hṛt-sthitaḥ —because He is  antaryāmī , situated everywhere, in the core of everyone's heart;  svānām —of His own associates;  niroddhum —just to forbid them;  bhagavān —the Supreme Personality of Godhead;  manaḥ dadhe —made up His mind.
TRANSLATION
The Supreme Personality of Godhead, Śrī Kṛṣṇa, who is situated as antaryāmī, the Supersoul, in the core of everyone's heart, heard the boys talking among themselves about the artificial python.