What is most important is the Insight

When Bahiya of the bark-cloth approached the Buddha and asked for teachings, the Buddha recognized him by his bark clothing as a follower of one of the early Upanishads which teaches "In the seen is Atman (the universal Self); in the heard is Atman; in the sensed is Atman; in the cognized is Atman." So the Buddha taught him: "Herein, Bahiya, you should train yourself thus: 'In the seen will be merely what is seen; in the heard will be merely what is heard; in the sensed will be merely what is sensed; in the cognized will be merely what is cognized.' In this way you should train yourself, Bahiya. "When, Bahiya, for you in the seen is merely what is seen... in the cognized is merely what is cognized, then, Bahiya, you will not be 'with that.' When, Bahiya, you are not 'with that,' then, Bahiya, you will not be 'in that.' When, Bahiya, you are not 'in that,' then, Bahiya, you will be neither here nor beyond nor in between the two. Just this is the end of dukkha.
(Atman may refer to a concept in several Indian religious traditions)