From fruit one begets a seed and seed develops into a tree to give fruit, and this process continues. This system of growth has been in vogue before the beginning. Its end is beyond the end.
Father begets a son and the son then becomes a father and begets son. Thus continues the system of father-son-father. This convention of creation has very deep quintessence.
As the end of journey of a traveller depends upon his embarking a boat and then de-embarking from it, crossing the river defines its near and far ends, and these ends keep changing depending upon which direction a traveller is crossing the river from.
Similarly all powerful, all knowing Guru is God Himself. He is both Guru and God. This incomprehensible state can best be understood by a Guru-conscious person. (56)