In ancient times, what did monks depend on for their livelihood and financial resources?

Ancient monks mainly cultivated land and planted it, supplemented by alms (that is, begging from others down the mountain). In ancient times, when Buddhism was popularized in the imperial court, many people joined the profession of becoming monks, building temples and building temples to avoid taxes. There were hundreds of thousands of monks and nuns in the Tang Dynasty, and Tang Taizong, Wuhou and Xuanzong all suppressed the Buddha.