His given name 维 and courtesy name 摩诘 together make 维摩诘, Vimalakirti, the wise lay follower of the Buddha in the 《维摩诘经》. Wang Wei was a devout Buddhist and also called himself 摩诘居士, 'lay Buddhist Mojie'.
usage
The name comes up most in praise of his art, as in 苏轼's line 味摩诘之诗，诗中有画: 'savour Mojie's poems and there is painting in them'.
