仁王般若經疏 3.142

3.142

The fifth is the calamity of wind. This also has two parts: first, listing the seven winds; second, from 'one should also read this sūtra' onward, [showing that] the sūtra's power can turn away and extinguish them. 'Black wind' is the wind beside the sea that blows black sand. 'Red wind' is red sand. 'Blue-green wind' is blue-green sand. 'Heavenly wind' and 'earthly wind' refer to heavenly yang and earthly yin. 'Fire wind' is hot wind.