We know what he means, but his words do not accurately or imaginatively convey this meaning.

The best lines are the first three, but the peculiar note of Shelley sighs so fully in them that they do not represent Browning.

What is special in them is his peculiar delight not only in the morning which here he celebrates, but in the spring.

It was in his nature, even in old age, to love with passion the beginnings of things; dawn, morning, spring and youth, and their quick blood; their changes, impulses, their unpremeditated rush into fresh experiment.
Unlike Tennyson, who was old when he was old, Browning was young when he was old.

Only once in _Asolando_, in one poem, can we trace that he felt winter in his heart.