Fra Giovanni gave us these immortal words in 1513:

"No heaven can come to us unless our hearts find rest in
today. Take heaven!
No peace lies in the future that is not hidden in this
present moment. Take peace!
The gloom of this world is but a shadow. Behind it, yet
within reach, is joy.
There is a radiance and glory in the darkness, could we but
see, and to see we have only to look. I beseech you to
look.
Life is so generous a giver..."