A "cause" can be understood as the main factor, our own subjective initiative; "conditions" are objective, auxiliary factors. We can control the "cause" but the "conditions" must be cultivated and fostered. 因是主觀的條件，緣是客觀的因素；主觀的條件可以 掌握，客觀的因素則要經營。 - Master Sheng Yen