Man goes step by step from simple worship to the worship of the Most High, as he realizes a higher and higher ideal. We can see this when we study the history of religions. It is the desire to pay respect, the desire to idealize, that has made man worship idols or trees. Some people consider a certain tree sacred. And even in bowing before trees the desire of love is satisfied, its desire to humble itself, its desire to pay respect and reverence; and by this means the love of the heart has its outlet. Such people are not evolved enough to know where God is; He is not before their eyes as this idol is. How can He who is not seen be known? Therefore people bow before beautiful flowers, beautiful herbs, beautiful trees in the forest. Others bow before rocks that have a certain form which attracts them and produces in them the desire to pay homage to this particular rock, thus bringing satisfaction to the soul's desire to bow and pay respect.