An amalaka (Sanskrit: आमलक), is a segmented or notched stone disk, usually with ridges on the rim, that sits on the top of a Hindu temple's shikhara or main tower. According to one interpretation, the amalaka represents a lotus, and thus the symbolic seat for the deity below. Another interpretation is that it symbolizes the sun, and is thus the gateway to the heavenly world.[1]
The name and, according to some sources the shape, of the amalaka comes from the fruit of Phyllanthus emblica (or Mirobalanus embilica),[2] the Indian gooseberry, or myrobolan fig tree. This is called āmalaki in Sanskrit, and the fruit has a slightly segmented shape, though this is much less marked than in the architectural shape.[3]
The amalaka itself is crowned with a kalasam or finial,[4] from which a temple banner is often hung.