Understanding the principles of Tathāgatagarbha is merely theoretical comprehension; it does not equate to the realization of Tathāgatagarbha, nor does it signify the awakening of the mind (明心开悟). Awakening entails the discovery and realization of precisely where and how Tathāgatagarbha functions. It involves observing its true existence and perceiving the insubstantiality of the dharmas (phenomena) through which it operates. Thereby, one genuinely comprehends the true reality of the world. Within the mind, a genuine sense arises that the five aggregates (五阴, form, feeling, perception, mental formations, and consciousness) constituting body and mind are insubstantial and unreal. Simultaneously, one develops a delightful curiosity towards Tathāgatagarbha.
After genuine awakening, descriptions of Tathāgatagarbha possess their own distinctive characteristics, being highly specific and authentic. They are not hollow descriptions of theory.