Our starting point is the acknowledgment of the fact that there are diverse religions which exclude each other. In reality, it means that all are right, not in their dogmatic exclusivism, but in their unanimous inner signification, which coincides with pure metaphysics, or in other terms, with the philosophia perennis . The metaphysical perspective is based on intellectual intuition, which by its very nature is infallible because it is a vision by the pure intellect, whereas profane philosophy operates only with reason, hence with logical assumptions and conclusions. It is because metaphysics satisfies the needs of intellectually gifted men. Pure metaphysics is hidden in every religion.
Spiritual practice is essentially prayer.
This is, after truth and spiritual practice, the third dimension of spiritual life. Without this quality, doctrine and spiritual practice would be fruitless. So we may say that pure intellection is a gift and not a generally human faculty. There is no need to develop it. Man can be saved by faith alone.