[Avodah] Learning on Shavuos - Two Scenarios

[M Cohen]

...note from a friend of mine (R Akiva Fleisher)

A Yeshiva student once approached MVHRHG"R Yaakov Kamenecki zt'l and told
him that although he stayed up through the night of Shovuos and learned
until the morning, he felt he actually lost quantity and quality in his
Torah learning. 
Towards the end of the night his mind was far from alert and he was so tired
that he slept a few extra hours over the next few days until he was back to
himself. He therefore raised the question if it was worthwhile to stay up
until the morning of Shovuos.

MVHRHG"R Yaakov Kamenecki zt'l responded that he should still do so in the
future. He explained that the intention of staying up all night is not to
cram in extra learning. It is obvious that most people would lose out some
Torah learning similar to the experience of this Yeshiva student. 
The intention of staying up all night and learning is to demonstrate an
unbridled love for Torah study on the day of the giving of the Torah. The
merit of this act is a "seguloh" for Hashem's blessing of opportunity to
learn Torah and do mitzvos with a minimum of external disturbances.

mordechai cohen