In the Word, arrows stand for truths which defend person from falsity.

In Arcana Coelestia 2709, it says this when discussing Genesis 21:20:

"And he became a shooter of the bow." That this signifies the man of the spiritual church, is evident from the signification of a “shaft,” “dart,” or “arrow,” as being truth; and from the signification of a “bow,” as being doctrine (see above, n. Arcana Coelestia 2686). The man of the spiritual church was formerly called a “shooter of the bow,” because he defended himself by truths, and disputed about truths; differently from the man of the celestial church, who is secure by means of good, and does not dispute about truths (see above, n. Arcana Coelestia 2708). The truths by which the man of the spiritual church defends himself, and respecting which he disputes, are from the doctrine which he acknowledges.

[2] That the spiritual man was in old time called a “shooter” and an “archer,” and that doctrine was called a “bow” and a “quiver,” and that the truths of doctrine, or rather doctrinal matters, were called “darts,” “shafts,” and “arrows,” is further evident in David:

The sons of Ephraim, being armed, shooters of the bow, turned back in the day of battle (Psalms 78:9).

In some places in the Word, an arrow can also have a negative meaning -- where it is falsity destroying truth, and a bow is the doctrine from falsity. A really good source to check here is Apocalypse Explained 357, stating in subsection 12 (in some translations).

(References: Isaiah 7:24)