That Which Always Keeps Us Going

Riddle: I can carry many though I have no body; I can often be weak but am hard to kill; I shine brighter than any light but you cannot see me; I sing the sweetest music but you cannot hear me; I can bring warmth to anyone no matter how cold it gets. What am I?

Answer: I am hope.

Source: https://www.riddles.com/10533

I can carry many though I have no body; I can often be weak but am hard to kill; I shine brighter than any light but you cannot see me; I sing the sweetest music but you cannot hear me; I can bring warmth to anyone no matter how cold it gets. What am I? — That Which Always Keeps Us Going by Mark Anderson v1.

Riddle: I can carry many though I have no body; I can often be weak but am hard to kill; I shine brighter than any light but you cannot see me; I sing the sweetest music but you cannot hear me; I can bring warmth to anyone no matter how cold it gets. What am I? Answer: I am hope. — by Mark Anderson v2.