Olomeinu - From the Midrash: Shavuos: The Persistant Bridegroom

This article uses a Mashal about a king who promised his daughter to anyone who could get into his palace and find her One young man finally makes it in only to find that he's lost in the palace, but the princess takes pity and helps him because he had tried so hard So too if we make efforts in our Torah learning, HaShem helps us the rest of the way