This supreme science was thus received through the chain of disciplic succession, and the saintly kings understood it in that way. But in course of time the succession was broken, and therefore the science as it is appears to be lost.
thus
by disciplic succession
received
this science
the saintly kings
understood
that knowledge
in the course of time
in this world
great
the science of one's relationship with the Supreme
scattered
O Arjuna, subduer of the enemies.