Darkness is not only the term used for the absence of light or some source of brightness but it is also considered as our inner Darkness. Which is also known as spiritual death. If one to learns to fight with his her inner darkness then the absence of light can't make him her afraid of the condition which are the part of life.
Darkness can't finished by darkness
Darkness can be finished by light.
If you want to be strong in life
Learn to fight with darkness.
Daily celestial challenge Monday theme darkness organized by 
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Note:
Sunday-Light
Monday-Darkness
Tuesday-AnimalKingdom
Wednesday-Structures
Thursday-ForcesinNature
Friday-LoveBeautyFreedom
Saturday-Agriculture