成唯識論演祕 3.291

3.291

有義：緣長等者以之為正。《佛地論》說十八圓淨所現淨土具顯、形色，准知穢土隨識所變，廣狹分量有形色也。前論亦云，隨量大小頓現一相。

There is an opinion: Taking the conditioning of length and so forth as primary is correct. The Buddhabhūmy-upadeśa states that the pure land manifested by the eighteen complete purities possesses both visible colour and shape; by this we can know by analogy that the defiled land transformed according to consciousness has shape according to the extent of its size. The earlier treatise also says that according to the greatness or smallness of quantity, a single mark is manifested all at once.