Pull a rope and you will find what it’s tied to.
Yank it hard and see how tight is that knot.

So too, there’s only one measure of your connection to the One Above:
When the whole, big world is tugging you downward and in every direction you never wanted to go, how firmly can you hold onto your cool, to your confidence that it’s all good, that everything that comes from Him is good?

See Igrot Kodesh, volume 6, #1663.