Throughout the series, Light Yagami handles conflicting desires and motivations by constantly reassessing his goals and adapting his plans accordingly. He often prioritizes his personal ambition to become the god-like figure "Kira" while also trying to outsmart his adversaries and maintain a facade of normalcy in his daily life. Light's intelligence and strategic thinking allow him to manipulate situations to his advantage and justify his actions as necessary for a greater cause, ultimately leading to a complex and morally ambiguous character development.