PVTANTRA is the esoteric secret teaching. It’s important to understand that it does not mean that it’s given to some but not to others. The secret teaching is not secret because there’s something wrong with it. It is secret because it is very hard for people to understand its meaning. For example it is like you’re giving a very potent-strong food to an infant or a child and will just be overwhelming. In that sense it is naturally hidden because people simply can’t understand its meaning. Its instructions must be given in accordance with ones mental capacity; the capacity of the practitioner. It remains naturally hidden from those with inferior minds, those with molester aspiration and ignorance. It has to do with an altruistic mind. However, if one’s altruistic mind is very limited then also the wisdom capacity of that mind will be limited as well. If ones altruistic mind is vast then naturally, ones mind will have the natural wisdom to understand the meaning PVTANTRA.