In terms of technology and life, rejection is a very clear form of closing the door to concepts that are undesirable and harmful ideas. In the digital world, mechanisms of rejection work in silence.
Email filters block spam, firewalls block network threats, and nowadays artificial intelligence systems reject content that is out of bounds in ethical terms.
This is done to keep a clean and safe environmental digital space. In real life, the same principle. Rejecting something is not very weak nor brave; it brings protection for time, energy, and values.
Each "reject it" from the sentences interruptions or ups and downs has repeatedly made room for something better to come.