In Balakandam sargam 45, during the churning of the ocean, Sriman Narayana ordained Siva to drink the poison that came from the chur; the shloka for these states uvAcainaM smitaM kRtvA rudraM shuladharaM hariH | daivatairmathyamAne tu tatpUrvaM samupasthitam ||1.45-23|| tattvadIyaM surashreSTha suraNAmagrato hi yat | agrapUgAmiha stithvA gRhANedaM viSaM prabhO ||1.45-24|| Why should Bhagavan call someone inferior to Him Prabho? Is there any explanation provided by our preceptors on this?