Lewis’ good friend, J.R.R. Tokein as well understood the jovial king.

“And then wonder took him, and a great joy; and he cast his sword up in the sunlight and sang as he caught it. And all eyes followed his gaze, and behold! upon the foremost ship a great standard broke, and the wind displayed it as she turned towards the Harlond. There flowered a White Tree, and that was for Gondor; but Seven Stars were about it, and a high crown above it, the signs of Elendil that no lord had borne for years beyond count. And the stars flamed in the sunlight, for they were wrought of gems by Arwen daughter of Elrond; and the crown was bright in the morning, for it was wrought of mithril and gold. Thus came Aragorn son of Arathorn, Elessar, Isildur’s heir, out of the Paths of the Dead, borne upon a wind from the Sea to the kingdom of Gondor; and the mirth of the Rohirrim was a torrent of laughter and a flashing of swords, and the joy and wonder of the City was a music of trumpets and a ringing of bells…”
J.R.R. Tolkein, The Return of the King