The asuras had a boxing match with Srimannarayana and experienced the thejas, the glory of God as they held Him through the fight. The divine touch of God released them from arrogance, ahamkara. Unless and until one remains constantly connected to God and His qualities, arrogance will continue to affect that person. Therefore, at the rakshasas’ request and with God’s divine mercy, Madhu and Kaitabha were granted permanent stay in Sri Vaikuntam. There was a problem however. How could they stay without going through the normal course of screening at the East entrance? There are many checks, qualifications, immigration clearances 😉 and a standard procedure for this abode. Lord had a plan to bypass all of this and sneak them through over the North wall!