Lorien, Uinen, and the Silver Tree
Telperion was the White Tree of Valinor and was also known by the name of Silpion, particularly in the early stages of Tolkien’s works. Tolkien’s earlier writings provide connections between the White Tree and some of the Ainur.
Irmo, more commonly known as Lorien after his dwelling place, was the master of dreams and visions and the brother of Namo/Mandos and Nienna. Their isn’t a lot of detail about Lorien in The Silmarilion, but in earlier works he has a strong connection to Telperion/Silpion. A youthful Ainu named Silmo was a servant of Lorien (the concept of the Maiar wasn’t quite developed yet). Silmo was in charge of keeping the tree Silpion (Telperion) watered, just like how Arien watered Laurelin. The dews of Silpion were collected into a cauldron called Silindrin which was located in the gardens of Lorien. Here, Irmo/Lorien would gaze into the cauldron and see many mysterious visions. Silpion, Silmo, and Silindrin all come from a root word associated with shining, silver light.
Since the last flower of Telperion later became the Moon, Lorien’s connection to the tree as the Master of Dreams and Visions may be due to the Moon’s association with the occult, the supernatural, and of course sleep.
Uinen has an interesting connection to Telperion as well. After the deaths of the two trees, Vana cut her golden hair short to weave for the sails of the ship of the Sun. Meanwhile, Uinen is described as weaving the sails of the ship of the Moon out of foam and mists, with some glittering like fish scales and others shining with tiny points of star-like lights.
Since Uinen and her husband were the Lord and Lady of the Seas and friends of the seashore-dwelling elves, Uinen’s association with the Moon may symbolize the Moon’s connection to the tides.