+~
+ "Vehicle" (yana) has two meanings: the means by which one progresses and
+the destination to which one is progressing. Mahayana in the sense of the
+vehicle by which one progresses means to be motivated by the mind of
+enlightenment—wishing to attain highest enlightenment for the sake of all
+sentient beings, one's objects of intent—and means to engage in the six
+perfections.
+ Seeing reason and need, Buddha set forth many systems and vehicles, but
+these did not arise due to his being intimate with some and alien to others.
+The trainees who were listening to his teaching had various dispositions,
+interests, and abilities, and thus he taught methods that were suitable for
+each of them. For those who temporarily did not have the courage to strive
+for Buddhahood or who did not at all have the capacity of obtaining Buddhahood
+at that time, Buddha did not say, "You can attain Buddhahood." Rather, he
+set forth a path appropriate to the trainees' abilities. Buddha spoke in
+terms of their situation, and everything that he spoke was a means of
+eventually attaining highest enlightenment even though he did not always say
+that these were means for attaining Buddhahood.
+ Since the purpose of a Buddha's coming is others' realization of the
+wisdom of Buddhahood, the methods for actualizing this wisdom are one vehicle,
+not two. A Buddha does not lead beings by a vehicle that does not proceed to
+Buddhahood; he establishes beings in his own level. A variety of vehicles are
+set forth in accordance with temporary needs.
+ -- H.H. the Dalai Lama