Hi Mei! Nice hearing from you. One piece of advice I have is to definitely go for a jog or do some cardio before you climb. This is how you may prepare your body for the uphill trek by conditioning it and increasing your stamina. This is especially crucial if you don't regularly exercise since you don't want to shock your body with the exertion it will be subjected to. In the weeks preceding up to your climb, jog a few times. Also, read about the mountain you’re going to climb. This is vital since it is important to understand the trail's unique features, such as river or canal crossing and wading, water source availability, admission fees, and so on. Have an amazing trip!
He is stating that the matter is more deeper than bodies, more soulful and more what matters on the inside with our souls. "Gorvern your own bodies" referring to not an actual body and its organs but what is inside a body deeply soulfully.
"Today nobody brought his or her instrument" is correct. It is common for people to use "their" in a sentence like this, but "his or her" is the more proper term.
