法華義疏 5.308

5.308

身手譬內智照機，衣裓机案譬現通說法外用，但得以外用化物，不得用內智化物也。

Body and hands represent the internal wisdom illuminating capacity; garments and low tables represent the external function of manifesting supernatural powers and preaching the Dharma. One can only use the external function to convert beings; one cannot use the internal wisdom to convert beings.