法華義疏 2.166

2.166

Śākyamuni appeared in the world for one lifetime, and the conditions for the Path of sentient beings should be mature; therefore he preaches the ekayāna for them, and consequently there are signs of the one who transforms and those who are transformed. The sentient beings of the lands in other directions are not transformed by Śākyamuni, and therefore they do not have the three signs; but wishing to use the other to illuminate this, he emits light to illuminate them, and hence there is only the sign of light.