Yogācārabhūmi-śāstra, Volume 53

If one attains the first fruition (Srotāpanna) relying on the state prior to attainment (anāgamya-samādhi), at that time, all seeds of unwholesome conduct capable of leading to the evil destinies are permanently destroyed. This is called the precepts beloved by the saints.

This passage clearly states that upon attaining the first fruition, one must possess the state prior to attainment. Only after attaining the fruition can the karmic seeds leading to the three evil destinies be severed and no longer arise. When one ceases to create karma leading to the three evil destinies, it is called the precept practice in which the saints delight.

If the state prior to attainment is incomplete or absent, one cannot engage in the actual contemplation of the five aggregates (skandhas) and cannot genuinely negate the notion of self in the five aggregates. The view of a self in the five aggregates cannot be eradicated, and thus one cannot attain the fruition. The intellectual understanding within the mind consciousness that the five aggregates are without self is merely conceptual knowledge; it does not constitute realization. Only upon realization is it truly attained; one must be utterly free from doubt to sever the fetter of wrong views.

Meditative concentration (dhyāna) is closely connected to the mind root (manas). With meditative concentration, the mind root is not obscured by afflictions and deluded thoughts, nor disturbed by the continuous discriminations of the six consciousnesses. Thus, one can diligently practice and thereby attain the fruition, comprehending the truth.