to hang over; to cover; to lie over; to overlap
to fall on one's shoulders; to become one's responsibility; to become a burden
重い幕が舞台に被さった。
A heavy curtain fell and covered the stage.
厚い雪が小屋の屋根に被さっている。
Thick snow is covering the cottage roof.
夕暮れ時、暗い雲が山頂に低く被さる光景だった。
At dusk, dark clouds settled low and draped over the mountain peak.