“When you grow a plant you first dig the earth, remove the stones and weeds, and make the ground soft. Then you put the seed into the ground and surround it with the soft earth so carefully that when the seed opens it will not be damaged by the weight of the earth. Finally, you water the seed a little and wait for it to germinate and grow. After one or two days, the seed opens into a seedling and a stem grows from it. Then the stem splits into two branches and produces leaves. It steadily grows into a trunk and produces branches in various direction with many leaves.
Similarly, the tree of the self needs to be taken care of. The sages of old, who experienced the sight of the soul, discovered its seed in yoga. This seed has eight segments which as the tree grows give rise to the eight limbs of yoga.” – B.K.S. Iyengar