"Each day be conscious of your duty to be a saint. A saint! And that doesn't mean doing strange things. It means a daily struggle in the interior life and in heroically fulfilling your duty right through to the end.”
Plenary indulgences can be obtained in many ways for the duration of the coronavirus epidemic. Along with a simple explanation, here is the text of the decree of the Apostolic Penitentiary, which explains it in detail.