成唯識論演祕 3.474

3.474

詳曰：假實之義，形待不定，如大乘種，真俗相對，種非唯真，即名為假；有無相對，種非全無，復名為實。愛亦同之，為喻何失？對彼所立，三和假觸，愛得名實，初因無過。

Detailed analysis: The meanings of conventional and real are variable according to contrast. Just as with the seeds of Mahāyāna, when ultimate and conventional are contrasted, because seeds are not solely ultimate, they are called conventional; when existence and non-existence are contrasted, because seeds are not completely non-existent, they are called real. Craving is also like this; what fault is there in using it as an example? In contrast to the conventional contact of the three in harmonious combination established by the opponent, craving can be called real; hence the first reason has no fault.