Why do you think sundiata did not walk after receiving his mother treatment but did walk when his half brother was made king?

Sundiata's physical disabilities were healed by the sorcerer during his mother's treatment, but his absence of his ability to walk was mysteriously taken away when he heard that his half-brother had been made king. This reflects the symbolic importance of the king's role and the idea that Sundiata's destiny was intrinsically tied to his royal lineage and position in the kingdom.