essential

anything indispensable; "food and shelter are necessities of life"; "the essentials of the good life"; "allow farmers to buy their requirements under favorable conditions"; "a place where the requisites of water fuel and fodder can be obtained"

सफल होन के लिए उसका स्वभाव और उसकी प्रकृति भी महत्वपूर्ण है.

These cave - temples essentially consist of a rock - cut hall, or mandapa, with one or more, often three, shrine - cells behind.