"If one attains perfection in Deity worship, that is called Arcana Siddhi. Arcana Siddhi means simply by Deity worship one goes back to Godhead, immediately after this life.
"So this Arcana Siddhi program is given in the Narada Pancaratra especially for the householders. Householders cannot undergo strict disciplinary activities of austerity, therefore for every householder the path of Arcana Siddhi is very much recommended. According to Vedic system, all householders are ordered to keep Deity at home and follow strictly the worshipment process.
"That makes the home pure, body pure, mind pure, and quickly promotes one to the pure platform of spiritual life. The temple is also specially meant for the householders. In India, in every town, in every village, in every neighborhood, still there are Visnu temples for the convenience of the surrounding householders."
(Srila Prabhupada letter, March 18, 1969)