Megilla 25a. One can always put on or take off sweater!

It's been way too long since I posted.  I plead a couple of circumstances - I've been pretty busy plus I haven't come across many sources that have left me feeling inspired to write here.  But it feels good to be back.  I would have been learning Megila tonight with my study partner A. but he is sick.  This is dedicated to a quick and rapid healing for him!

The Gemara states a famous line on the top of the page:  'All is in Heaven's power, except for awe of Heaven.'  It always gives me a little shiver when I read something famous in context.  Tosafot, medieval commentators, have an interesting take on it:

This is a difficult statement, as it written on Page 30a of Tractate Ketubot: 'All is in Heaven's power, except for heat and cold.'  (The unspoken question is: Which is it that is under our control:  awe or heat/cold?)  It appears that the statement in Megilla relates to a person's inheritance, if they will be wise or dumb, rich or poor, strong or weak.   All of these things are decreed, as it is written (Jeremiah, 9) 'The rich person should not take pride in his riches, nor the mighty in his might, but only about this should one brag:  to brag of wisdom and knowing Me' (that is, knowing G-d).   In Ketubot, the statement relates to a person's future situation, things that occur after they are born, for all such circumstances are also under Heaven's control, save for heat and cold.  

There is no contradiction between this statement and Scripture's statement (Psalms 147), 'Who can withstand His cold?' for this refers to G-d sending forth all his cold at once, as it says at the beginning of the psalm, 'He sends forth his cold like crumbs of bread.'  [OK I have to admit I didn't totally get that last paragraph...]   One also need not be troubled by the statement (Psalms 19)  'There is no shelter from His heat,' for Psalms here speaks of travelers, while a person at home can always find shelter from heat.