Bodhinatha's Latest Upadeshas: "The Difference in Practice of Theism and Monism" (September 3, 2014)
During a puja we're in Theism, to receive the blessings of the Deity. After a puja we can go within our self in meditation, giving up the idea of an external Deity, Monism. Monistic Theism: Advaita Ishvaravada. Advaita means the Monism; Ishvara means the Theism.
In Shum we use two words that relate to that: shumif and dimfi. First, perfect your Theism. Then become a monist. That's called Saiva Siddhanta; one leads to the other.