Kalki Bhagwan is said to be mounted on a strikingly beautiful White Horse, and is most often picturised in the foreground of a dark sky. This symbolises his coming at a time when darkness (evil) is the order of the day, and he is the saviour to rid the world of its sufferings. Yes, there is a technical difference. Generally these two terms are used interchangeably as a synonym. But Shankara, Rudra, Mahadeva, etc. mean the God who dwells in the Kailasha mountain. And Shiva means His absolute formless mode of bright light. Shiva The Linga Purana has the description regarding the origin of Siva which goes something like below: Just before the beginning of the creation, Brahma and Vishnu had some disagreement and a quarrel ensued. At that time a column of bright light ... The words ' Devta ', ' Bhagwan ' and ' ishwara ' can all refer to 'God' in General. However, looking deeply their meanings will drastically vary according to context. Bhagavan is a term which is commonly used,by several traditions. What is the definition of Bhagavan as per Vishnu Purana?