The Narayana Kavacham occurs in chapter eight of the sixth skanda of Bhagavada Purana. It is an Armour to protect ourselves from our enemies seen and unseen. Narayana Kavach is a very brief Stotra containing only 24 shlokas. It is to be read once in a day. It takes hardly 10 minutes. First we have to apply the Lord Vishnu on all parts of our body. This process is called Anga-nyas and kara-nyas. A very very simple technique, which can be learnt from Guru. It is followed by Narayan Kavach.