Today I happened to visit a Shiva Temple on the eve of Shivaratri. After worshiping the idol, I turned back to leave. The priest there, stopped me and asked me not to backtrack, but to leave the Garbhagriha by facing in the direction of the idol. He said that it is considered disrespectful if we do not leave so. Furthermore, he explained to me that one must always see the idol while entering and leaving the Garbhagriha. One must turn their back only after stepping out of the Garbhagriha.