The Great Liberation Tantra1.31
बहुक्लेशकरं कर्म वैदिकं भूरिसाधनम् ।
कर्तुं न योग्या मनुजाश्चिन्ताव्याकुलमानसाः ॥३१॥
bahukleśakaraṃ karma vaidikaṃ bhūrisādhanam |
kartuṃ na yogyā manujāścintāvyākulamānasāḥ ||31||
— causing much hardship ; — ritual action ; — Vedic ; — requiring abundant means ; — to perform ; — not ; — fit, capable ; — humankind ; — with minds agitated by anxiety The Vedic rite, causing much hardship and requiring abundant means—humankind, their minds agitated by anxiety, were not fit to perform it,