Which Zen and Shinto values most likely contributed to the growth of these belief systems in Japan?

love of war
worship of one god
reverence for nature
respect for ancestors

The values that most likely contributed to the growth of Zen and Shinto belief systems in Japan are reverence for nature and respect for ancestors.

Reverence for nature is a key value in both Zen Buddhism and Shintoism. In Zen Buddhism, the natural world is viewed as a manifestation of ultimate reality and is seen as a powerful tool for spiritual awakening. The practice of meditation in nature is highly valued in Zen, with practitioners seeking to deepen their connection with the natural world. Similarly, in Shintoism, nature is considered sacred, and natural phenomena such as mountains, rivers, and forests are worshipped as gods or spirits (known as kami). This reverence for nature resonated with the Japanese people and contributed to the growth of both Zen Buddhism and Shintoism.

Respect for ancestors is another value that played a significant role in the growth of Zen and Shinto belief systems. Ancestor worship and the belief in ancestral spirits are important aspects of Shintoism, with rituals and ceremonies dedicated to honoring and paying respect to ancestors. Similarly, in Zen Buddhism, the influence and teachings of past Zen masters and ancestors are highly respected and revered. This emphasis on honoring and respecting one's ancestors appealed to the Japanese people and contributed to the growth of both Zen Buddhism and Shintoism.