What information did Columbus om it from his letter to Santangel and why?

In his letter to Luis de Santángel, Columbus omitted details about the harsh treatment of the indigenous peoples he encountered and the challenges faced during his voyages. He focused instead on the riches and potential for conversion to Christianity, aiming to secure further support and funding for his expeditions. By highlighting the promise of wealth and new lands while downplaying the negative aspects, Columbus sought to present a favorable view of his discoveries to gain favor and financial backing.