What is "kshetrajna"

Kshetrajna ( Sanskrit: क्षेत्रज्ञ) means knowing the body, nature of the soul, spirituality, knowledge of the soul, conscious principle in the corporeal frame Chapter XIII of the Bhagavad Gita is the Yoga of discrimination between the Kshetra and the knower of the Kshetra, the Kshetrajna. In modern days, "Kshetrajna" is also written as "Kshetragya". This is the name of Goodess "Kumari" at the age of her 15th years. This is also one of the name of Lord Vishnu.