Help me solve a riddle

A week or so ago, when the year just began, I was doing some reading on the Orphic mysteries and Gnosticism.

Soon after I dreamt of Apollo. Invoked in marble, I approached the statues’ base and he gave me two bronze arrowheads and a buckler sheild, circular with a semi-circular boss in the middle. The bronze was aged, a green bronze, beautiful like no other metal exposed to the elements can be. It occurred to me the size of the sheild could also change.

The figure of Apollo was thought to be dual natured, sometimes Helios, the sun god. What’s important to us is that he was know as a prophet, an Oracle besides the usually connection he has to messages.

It seems to me that I’ve been given a riddle. So my readers, do you know what I could do with two arrowheads and a sheild?