Yogācārabhūmi Śāstra, Volume 34 (58)

Original text:复于如是诸有诸生。增上意乐。深心厌怖。及于涅槃随起一行。深心愿乐。彼于长夜。其心爱乐世间色声香味触等。为诸色声香味触等滋长积集。由是因缘。虽于涅槃深心愿乐。而复于彼不能趣入。不能证净。不能安住。不能胜解。其心退转于寂静界。未能深心生希仰故。有疑虑故。其心数数厌离惊怖。虽于一切苦集二谛。数数深心厌离惊怖。及于涅槃。数数发起深心愿乐。然犹未能深心趣入。

Explanation: Furthermore, with regard to the intensified intention toward the aforementioned forms of existence and births, one develops deep revulsion and fear from the depths of the mind; and toward any single volitional formation that arises in connection with nirvāṇa, one has deep heartfelt aspiration and delight. The practitioner, throughout the long night of birth and death, had delighted in worldly forms, sounds, smells, tastes, tangibles, and so forth with his mind, and for the sake of these forms, sounds, smells, tastes, tangibles, and so forth, the truth of suffering was nourished and accumulated.

Due to this condition, although one can now deeply aspire to and delight in nirvāṇa, one cannot enter into nirvāṇa, cannot realize the pure dharma eye, cannot abide securely in the Four Noble Truths, nor can one attain determination (adhimokṣa) regarding the Four Noble Truths. One's mind regresses from the realm of tranquility, because one has not been able to give rise, from the depths of the heart, to longing and veneration for nirvāṇa, and because there are doubts and misgivings in the mind, one repeatedly becomes weary of and terrified by birth and death. Although such a person, in the cultivation of all the truths of suffering and the truth of origination, repeatedly develops deep weariness and terror toward birth and death, and repeatedly gives rise to deep heartfelt aspiration and delight toward nirvāṇa, he still cannot enter into nirvāṇa with a deep heart.