The practice which leads to the realization of the true nature of things is based on the elimination of all conceptual proliferations ("prapañca") and ideations ("saṃjñā") that one superimposes on true reality"." This elimination of concepts and ideas is the basic framework applied by the bodhisattva to all meditative practices. The YBh states:The path of practice shall be correctly followed in order to eliminate that ideation. Through understanding, thoroughly exercised upon all objects of knowledge, by keeping in mind only the ideation that the ideations of all phenomena [are nothing but adventitious, you should thus repeatedly remove any ideation conducive to the proliferation directed at all phenomena and should consistently dwell on the thing-in-itself by a non-conceptualizing mental state which is focused on grasping only the object perceived without any characteristics. Thus you will obtain the concentration stemming from the lineage of those practicing the pure contemplation of the Tathagata's Supreme Cognition. Even when you practice the meditation on the impurity, you should not relinquish this mental orientation. Likewise when you practice the meditation on friendliness, dependent origination, analysis of elements, mindfulness of breathing, the first absorption and so on up to the station of neither ideation nor non-ideation as well as the bodhisattva's countless meditations, supernatural faculties, contemplations, and attainments, you should not relinquish precisely this mental orientation.