Translation: Purity is of two kinds:
(1) external purity and
(2) internal purity.
Explaination: This sloka indicates the meaing of the fifth characterisitc of religion "शौचम्". "शौचम्" means cleanliness or purity. We clean our body everyday but internal purity is also equally important. Internal purity means purity of thinking and emotions. Moreover, abandonement of malice feelings towards any individual is also called internal purity. If a person is not internally pure, his devotion is useless. Besides, without internal purity, the external purity is meaningless.