I don't remember now where or when I first came across this peom by Jalal ad-Din Rumi, a thirteenth century Sufi mystic and poet, but I often come across it and think of it. It speaks for itself, so needs no more introduction from me other than that I hope you enjoy it too.
The Guest House
This being human is a guest house.
Every morning a new arrival.
A joy, a depression, a meanness,
Some momentary awareness comes as an unexpected visitor.
Welcome and entertain them all!
Even if they are a crowd of sorrows,
Who violently sweep your house
Empty of its furniture,
Still, treat each guest honourably.
He may be clearing you out
For new delight.
The dark thought, the shame, the malice,
Meet them at the door laughing and invite
Be grateful for whoever comes,
Because each has been sent
As a guide from beyond.