Every galaxy experiences this on a regular basis.

It is part of every galactic life cycle. As every galaxy within the universe/multiverse is alive, so it must receive it's pulse of energy on a regular basis to continue to live and exist, just as we humans do. (As above - So below).

This pulse of energy occurs in every galaxy and in the process, provides for the life giving forces that are found within! It is on those life giving forces of this pulse that we are what we are today.