The remez interpretation of Modeh Ani is that it alludes to the Resurrection of the Dead that will occur in the times of Moshiach. How can we compare something as mundane as waking up each morning to something as monumental as the resurrection?

The drush interpretation of Modeh Ani is that just like Hashem returns our souls to us, so should we not hold on to the assets of a debtor even though such a prohibition may seem impractical and even senseless.

(Chs. 13-14)