There is a stage of evolution in man's life where his every question is answered by the life around him. If there is a living being before him or if there is nature around him, if he is wakeful or if he is asleep, the answer to his question comes as an echo of the very question. As certain things become an accommodation for the air in order to turn it into sound, so for every thought of a sage everything becomes an accommodation in order to help it to resound, and in this resonance there is an answer. In point of fact the answer is in the question itself; a question has no existence without answer. It is man's limited vision that makes him see the question only, without the answer.