You must know the difference between imagination, theoretical knowledge and true realization. Could you nourish yourself by only listening to a talk on food? To know food only theoretically is to always remain hungry. You must eat to satisfy hunger. So he who seeks new doctrines continuously but does not put them into practice in his life is in continual spiritual starvation.
Paramahansa YoganandaFreedom means the power to act by soul guidance, not by the compulsions of desires and habits. Obeying the ego leads to bondage; obeying the soul brings liberation.
Paramahansa YoganandaAt physical death man loses his consciousness of the flesh and becomes conscious of his astral body in the astral world. Thus physical death is astral birth. Later, he passes from the consciousness of luminous astral birth to the consciousness of dark astral death and awakens in a new physical body. Thus astral death is physical birth. These recurrent cycles of physical and astral encasements are the ineluctable destiny of all unenlightened men.
Paramahansa Yogananda