上刀山，下火海

lit. to climb mountains of swords and enter cauldrons of boiling oil (idiom); fig. to go through trials and tribulations

lit. mountains of daggers and seas of flames; fig. extreme danger (idiom)

lit. to jump into scalding water and plunge into raging fire (idiom); fig. to brave any danger

from the cradle to the grave (idiom); to go through fire and water; brave

lit. the mountains are high and the torrents swift; to undertake an arduous task or journey (idiom)

to climb mountains and wade rivers (idiom); fig. to make a long and difficult journey