The Default World
Life, like water, flows.
With no input it flows via the path of least resistance, through the valley, constrained to the riverbed.
Within the riverbed each water molecule can move in three dimensions: up, down, left right, but moving forward takes no effort.
Like water in the riverbed, no additional energy is required to participate in the Default world.
However water can do so much more than flow along the riverbed. It can do work, it can nourish food, it is most of what makes up life as we know it.
It seems natural for water to be confined to the riverbed, but with a little extra energy it can escape and reach the mountaintops, crystallize into ice, fly through the mountain range and return to its liquid form, flowing at breakneck speed down the mountainside, turning waterwheels and turbines and hydrating dry seeds to give birth to living things.
But it takes extra energy to do this, and while water gets this energy from the Sun in a passive way, people who want to go beyond the Default World usually need to harness this energy themselves.
The first step is becoming aware of the Default World, which is surprisingly easy to ignore when you're one molecule bouncing along inside millions of others, only occasionally experiencing the boundaries of the sides of the riverbed, or the surface tension of the water, or grinding along the silt at the bottom.
Once aware, it takes energy to escape the bounds of the riverbed. What makes this feel unnatural is that it takes constant expenditure of energy, when the energy stops, the water returns to the riverbed naturally, by default.
But the fact that it requires constant expenditure of energy should not be considered proof that it is unnatural, regardless of how convinced the rest of the water is of this. Of course you can't supply additional energy forever, so it is necessary to return to the riverbed regularly, but this isn't defeat or evidence that the mountaintops don't exist, it's just elementary physics.