“First of all, as to the question of exactly hell and the Buddha exist, one sutra states that hell exists underground, and another sutra says the the Buddha is in age west. Closer examination, however, reveals that both exits in our five-foot body. This must be true because hell is in the heart of a person who inwardly despises his father and disregards his mother. It is like the lotus seed, which contains both blossom and fruit. In the same way, the Buddha dwells within our hearts.” — Nichiren
Credit Daisaku Ikeda for the quote.