What is the effect of comparing trust to "a trust of the sun"?

It shows how powerful trust can be.

Trust is valuable no much people are able to earn it its like the 'sun' as you need to trust the sun for example when you need to go out and you hope it doesn't rain you can say through the poem trust is an extended metaphor. As trust is a firm belief in the reliability, of truth or ability of someone or something. The sun makes you feel happy and joyous as you can go out but it can loose your trust when the winters come around so summer and winter is contradicting.