成唯識論演祕 3.435

3.435

如第六意緣曾實，境熏成實種，後生實現，此雖比量分別變收，容有實用。第六現量與五同緣，亦有實用。若定心緣十八界者，用通假實，如前應知。

For instance, when the sixth [mental] consciousness cognizes a previously experienced real realm, it perfuses and forms real seeds, which later produce real actualities. Although this is inference and is subsumed under transformation by conceptualization, it may still possess real utility. When the sixth consciousness in direct perception cognizes together with the five, it also has real utility. If the mind in meditative absorption cognizes the eighteen realms, its utility applies to both conventional and real, as should be understood from before.