한 시름 덜다 (놓다): that’s a relief, what a relief, to lighten a burden, to let go of your anxiety

한 시름: a big worry, a big burden

Ex) 시름에 잠기다, 시름에 빠지다: to be deep in anxiety (잠기다: to sink, 빠지다: to fall into)

덜다: to allay, to take, to lessen, to lighten

놓다: to let go of ~

→ To let go of/to lighten one’s burden