Taking this as an opportunity or trigger to start or change something; using this event as a reason to do so.
これを機に禁煙を始めることにした。
I've decided to use this as an opportunity to quit smoking.
会社の倒産をこれを機に、新しい分野へ挑戦するつもりだ。
Taking the company's bankruptcy as an opportunity, I plan to try a new field.
これを機に人間関係を見直したほうがいい。
You should take this opportunity to reassess your relationships.