kṛcchrataḥ
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because of hard austerities — SB 7.12.22
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from danger — SB 3.19.35
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from undergoing severe austerities and penances as a way of practicing yoga, meditation, etc — SB 10.12.12
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sufferings — SB 1.8.24
durga-adhva-kṛcchrataḥ
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although they passed the very rough way with great difficulty — SB 10.13.32