Struggle we give to situation when we are not able to
move with ease. The struggle comes when we take
tomorrow world for granted. The less preparation for the
assignment and expect something to happen beyond.
Whenever we face  struggle in spite of preparing well,
we should convince our mind that we are playing
CHESS with the situation having less pieces...

In Macro Level, Struggle has brought lot of
innovation to this world, Struggle has drawn the attention
of the world and  brought new reforms.  

Micro level, If someone say he is struggling, you won't have
good opinion about him, reason we feel sorry for
his incapacity to move ahead of the challenging situation.
Any one who uses the word  'Struggle' not understood the
pattern of functioning of this world.