Being and Time mentioned in "Being and Time", has been identified by some with Heidegger's central notion of "Sorge" ("cura", care or concern). However, for Heidegger, "theoretical" knowledge represents only one kind of intentional behaviour, and he asserts that it is grounded in more fundamental modes of behaviour and forms of practical engagement with the surrounding world. Whereas a theoretical understanding of things grasps them according to "presence," for example, this may conceal that our first experience of a being may be in terms of its being "ready-to-hand." Thus, for instance, when someone reaches for a tool such as a hammer, their understanding
Haribhadra (Buddhist philosopher) through four kayas: svabhavikakaya, [jnana]dharmakaya, sambhogakaya and nirmanakaya. Haribhadra's position was in turn challenged by Ratnākaraśānti and Abhayakaragupta. In Tibet the debate continued, with Je Tsongkhapa championing Haribhadra's position and Gorampa of the Sakya school promoting the other. Haribhadra (Buddhist philosopher) Haribhadra (, , Tib. "seng-ge bzang-po") was an 8th-century CE Buddhist philosopher, and a disciple of Śāntarakṣita, an early Indian Buddhist missionary to Tibet. Haribhadra's commentary on the "Abhisamayalankara" was one of the most influential of the twenty-one Indian commentaries on that text, perhaps because of its author's status as Shantarakshita's student. Like his master, Haribhadra is retrospectively considered