Dharma Armor

when an external enemy is suspected of approaching, one puts on armor for protection, readies arrows for battle and prepares for when his enemy appears. Since the time of death is uncertain, its approach is suspected, but its actual arrival is unknown. Why not put on the armor protection of the dharma, why not ready, prepare, and practice with the arrows of insight and penetrating realization. So when the time of death arrives you have trained, and are ready to put the essence of dharma instructions into concrete action.