Are all Hindus idol worshippers ?
Major religious events like Kumbhabhisekam are performed to energise the Murthi(icon) with divine power, which can either be diluted or lost due to transgressions committed unknowingly by the priests or worshippers. Worshipping the icon gives the devotees access to God and His power. In the temple there are several types of Murthis(images). However as a Hindu matures, he/she realises that God is within them, and they depend less and less on pictures or idols of God.