Namaste all,

What is the difference between Japa of "Namasivaya" and "Om Namasivaya" ? I read that Shaiva Naayanmaars - all of them mention only "Namasivaya" in their pathigams/compositions (or "Sivayanama") . I have not read any of them mention " Om Namasivaya" or "Om Sivayanama" in their Pathigams. They seem to stress only 5 Letters (excluding OM).

But all books in Sanskrit - Puranas etc seem to mention only "Om Namasivaya".

Can anyone throw more light on this,focusing on

What a seeker should chant?

Thanks to all ! Best wishes for all in their Sadhana!