 Ishta Devata is the Devata or the God or the representation of your choice which you love. There are lots of them. What a beautiful, free and amazing way to live. You want to give that up? Then talk about secularism and thisism and thatism and equality for all religions. Why? There are over 100 Christian countries in this world, over 50 Muslim countries in this world. But when it's a talk about a Hindu nation, then everyone is allergic to it. Why?