Q:

What's the point of the bombable caves with golden statues?

This has to be the third or fourth such room in the game. This particular room is deep within an area that can only be reached with the rooster. I imagine that if I can do something here, I probably can only do so here and now.
What's the point of these rooms? How do I activate them? What do I get from it?

A:

This is a Fairy Spring. If you have taken damage, there should be a nice fairy there who will heal all of your hearts of damage. When you aren't harmed, however, it will just be empty.

'Tis why the statues are of fairies.

