Nothing exists by itself. There is no such thing as “stand alone”.
Inter-dependence is often used in a context of one thing helping another, this can certainly be true, perhaps there is a slightly deeper meaning which relates to more than just helping but the necessity of things just plain old depending on each other.
We can look at a pile of stones at the bottom of a cliff and think something akin to inter-dependence, but it’s easy to leave out the water that coursed through for perhaps millennia and created the cliff. That water has changed into vapor and dew and lakes and ponds and even an ocean or two, while the cliff and its rocks transform a tad more slowly, not one atom in the water, or the cliff, leaves the Universe.
Depending, over time?
Nature isn’t There.
Moving at the speed of light.