In the universe, existence is interaction, what is interaction force, the impact of interaction force in the universe

"In the universe, a planet that does not affect another planet is called 'no heat, no energy, no life"

Photo image Rakowski D

This is a philosophical-figurative expression. However, if you want to clarify it further, or switch to a scientific-physical style, or a philosophical style.

Expressing in a scientific-physical style:

In the universe, all celestial bodies have gravity and interact with each other. A planet that does not interact with another planet at all is impossible in a space with mass. If there is no interaction - no energy exchange - then there is no heat flow, no material movement, and therefore no conditions for life to exist.

Short explanation:

No interaction = no gravity, no light, no radiation, no collision, no heat.

No heat ⇒ no energy cycle ⇒ cannot sustain life.

Expressing in a philosophical style. 

A planet alone, sending no gravity, receiving no light – is a dead place in the universe. Where there is no heat, there is no energy, a land without exchange, without change – and therefore, without life. 

In a literary way. 

"A planet without action is a planet without vibration – without light, without gravity, without life. In the universe, existence is interaction. Isolation is extinction."