If something is alight, it is burning. Several buildings were set alight = ablaze
If someone's eyes are alight or if their face is alight, the expression in their eyes or on their face shows that they are feeling a strong emotion such as excitement or happiness. She paused and turned, her face alight with happiness
come down; "the birds alighted" to come to rest, settle; "Misfortune lighted upon him
If a bird or insect alights somewhere, it lands there. A thrush alighted on a branch of the pine tree