"Our forefathers' legacy to us is the secret that in essence God exists here.
From generation to generation, they whispered into the ears of those who would follow them:
'Within your house, within the house of all humanity, there is a hidden treasure, a knowledge that is the secret of the true unity of God, a treasure more precious than those of all earthly kings -- the awareness that God exists despite all the concealment.'
And we offer thanks for this inheritance:
'How goodly is our portion ... and how beautiful our heritage!'
For compared to it, everything else is dwarfed and of no value."
From Understanding the Tanya, p. 152, by Rabbi Adin Steinsaltz