Significance of Umbra
In Shilpashastra, Umbra is defined as the darker or full shadow produced by the gnomon. This concept distinguishes Umbra from penumbra, which refers to the lighter shadow. Understanding these terms is essential in the study of shadow play and light, highlighting the intricate relationships between light, shadow, and artistic representation in traditional Indian architecture and sculpture.
Synonyms: Shadow, Shade, Darkness, Obscuration, Gloom, Obscurity
The below excerpts are indicatory and do represent direct quotations or translations. It is your responsibility to fact check each reference.
Hindu concept of 'Umbra'
In Hinduism, Umbra symbolizes the complete shadow cast by a gnomon, representing the depth of darkness, in contrast to the lighter penumbra, signifying a deeper understanding of duality and perception.
From: Manasara (English translation)
(1) The darker or full shadow created by the gnomon, distinct from the lighter shadow known as penumbra.[1]