If we become accustomed to positive states of mind they are infinitely expandable, like the constant yearly and monthly never-ending advance of technology, for example. If we become accustomed to positive mental states, many positive qualities are attained on that basis.
Quote from Precious Teachings, by Khenpo Karten Rinpoche, page 44 in print version (50 in PDF version), “Essence of Buddhism as Related to the Four Noble Truths.”
