Keshava is another name of Vishnu , one of the trinity of Brahma , Vishnu , and Siva .
Brahman or God , the ultimate reality is often referred to as Narayana by the Vaishnavas or followers of Vishnu .
The great Sri Adi Sankara said " Akashath patitham thoyam , yatha gachathi sagaram , sarva deva namaskaram Keshavam prathigachathi"
"Just as the water that falls from the skies ultimately reaches the ocean , similarly prayers to all the Gods ultimately reaches Keshava . "
