Childhood, youth, old age — endure them

then he says, just as the embodied self has in the body child would use an old age, so does it win another body, an intelligent man is not bewildered by it, oh, son of something, another main project, contacts of senses with their objects, for a school and heat, pleasure and pain, these come and go, they are fleeting, endure them, who heal the man whom these do not agitate, who is the same and pain in pleasure and who is wise becomes fit indeed for immortality.