They wither and die (Elder Joseph of Vatopaidi)

Downfall, then, is severance and departure on the part of any created being from the first cause of its existence, which is God. According to divine revelation, all things are the result of a cause, they can’t exist by themselves but only by ‘partaking’ in God’s energy and providence. If therefore, they’re cut off from the cohesive power and energy of God, they crumble and become moribund.