「佛陀心法」為心法或行法之實踐，旨在止住「妄心」並令「真心」起作用。大華嚴寺依「普賢乘禪觀行法」之心法工程，將修行與實踐之架構分為「資糧道」、「前行」與「正行」三階段；其中，「前行」是透過禪定的狀態於「界內定」中進行，而「正行」是透過正定的功夫於「界外定」中進行。本論文將著重在「前行」過程之介紹，透過「唯心識觀」、「真如實觀」、「毗婆舍那觀」及「奢摩他觀」等四種觀法，概述十信位各階位之工程與其所經歷的「妙高定」、「欲界定」轉至「出界定」等禪定階段，此過程主要是清理欲、色、無色等三界中的生命雜質，而此亦為「普賢乘禪觀行法」之關鍵所在。

The principle of the Heart of Buddha's teaching is to eliminate the “false mind” in order to evoke the “true mind”. Da Huayen Monastery adopted the Chan-Kuang practice of Samantabhadra-yāna, which consists of three practice development stages: accumulation, preparation and main practice. Preparation is the stage which carries out via Samadhi inside the Trailokya, whereas the correct practice is to be carried out via Samadhi outside the Trailokya. This article will be focused on four methods of contemplation, including contemplation of mind, contemplation of Tathata, contemplation of Samatha, and contemplation of Vipasyana, to briefly introduce the criteria of each grade of bodhisattva faith (there are ten grades) which can be achieved within the process of Miao-Kao samadhi, Kama-Dhatu samadhi and Samadhi outside the Trailokya. The main purpose of the entire procedure is to remove the life impurities of Kamadhatu, Rupadhatu and Arupadhatu, and which, is the crucial point of Chan-Kuang Practice of Samantabhadra-yāna.