Mountains are mountains
“In the beginning, mountains are mountains and rivers are rivers; later on, mountains are not mountains and rivers are not rivers; and still later, mountains are mountains and rivers are rivers.”
—Zen saying, as written by Daizui Macphillamy, Rev. Master
There are many versions of this saying out there, some with dubious attributions. Again, the source doesn't really matter.
Here's my version: don't overthink it.