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Gimli is the son of Glóin, one of the former companions of Bilbo Baggins.
Gimli is told he alone must be blindfolded if he is to enter the forest, and his refusal nearly leads to a violent situation, which is only defused when Aragorn proposes the entire Fellowship is blindfolded.
Gimli's opinion of Elves drastically changes when he meets Galadriel, Lady of Lothlórien: her beauty, kindness, and understanding impresses Gimli so much that, when given the opportunity to ask for whatever he wishes, asks not treasures or magical items, but rather one of Galadriel's silver-gold hairs, which he will treasure forever.