The document provides an introduction and summary of a Buddhist meditation class on Chán (Zen) meditation and the four immeasurable minds taught at the Buddhist Association of Canada Cham Shan Temple. It discusses contemplating renunciation and equanimity by understanding impermanence, no-self, and letting go of attachments. It then summarizes sections from the Vajra Prajñāpāramitā Sūtra on adorning pure lands without dwelling anywhere and the supremacy of unconditioned blessings obtained from reciting verses from the sutra.