(a) The figure of speech employed here is a metaphor,
(b) A metaphor is a figure of speech like a simile where two things are compared. In a simile, we say one thing is like the other. But in a metaphor, we may one thing is the other. Thus “Chitra sings like a cuckoo” is a simile. But when we say “Chitra is a cuckoo in singing”, it is a metaphor. In the poem his mother speaks of herself as the re of the hearth, the tight of the good sun, and the heat that warms the earth. They are beautiful metaphors and show the importance of the mother in a house.
