The shadow is an invisible property of nature which may be seen as ghost in nature, the perspective of shadow existence is a realistic concept which may or may not be possible for all being in natural view of the scenario,
At early stage of once life, the whole thing is seen as an imaginary dot. But coming up to age one gets to understand the reality of the many natural existing domes. As for shadow, the same content is and will be developed for the skills to come to reality, shadow may be big and lager both in size, length and breath depending on the nearness of the source of luminosity cast upon an object or natural source from natural luminous source like, the sun and the moon 🌜 which both cast light upon object causing the objects to have shadow.
The concept and perspective grows bigger and wider.