The preceding clause expresses an often hypothetical situation, and the subsequent clause expresses a judgment related to the situation. Depending on whether the judgment is positive or negative, conditions for the situation can be either great or lacking. Often used with 는.
Examples
바다 <span class='focus'>가기에는</span> 날씨가 딱 좋아요.
The weather is just right for going to the beach.
케이크 <span class='focus'>먹기엔</span> 너무 배불러.
I'm too full to eat cake.
그 게임 <span class='focus'>하기엔</span> 인원이 부족해. 8인부터잖아.
We don't have enough people to play that game. It's for 8 or more players.