work at a hospital and, some days, I am unable to wear tefillin during the day, but only pre-dawn. May I then put on tefillin before its regular time? [Our staff knows the querier.]
It would appear that his thirst for closeness to God, and his great longing for the Holy Land - the land wherein the Divine Presence rests - shook his inner being so strongly that no worldly enjoyment could compare to living in the land of Israel.