Struggles

Is anyone can define what struggle is,

Can anyone explain the definition of struggle,

One considers it as compromising for others is a struggle,

Others consider it as doing hard work and gaining nothing,

Whole life spends to settle a steady life,

Whole life spends in alluring and favoring others,

But the struggle never ends,

Ends of one struggle lead to another,

The struggle ends with the end of life,

This leaves a burden on others if struggle never result in satisfaction,