sack / bag opening at both ends

a mountain (large mass of earth and rock) or (large) hill / a mine (excavation usually consisting of small tunnels) / a heap, pile / the top or high part of an object / a chance, gamble / a climax, peak

to be burdened with, to carry on back or shoulder

Same as above.

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

登る, 上る: to ascend, to climb, to go up / 昇る, 上る: to go up, rise

to bear on the shoulders

(historical, Ancient Korea) mountain, hill