Don’t grieve over the vicissitudes of your existence --- you cannot escape hardship.
Life, for the most part, involves work and responsibilities.
Happiness is an exception or only a fleeting phase that comes and goes sporadically. You long for this life, yet Allah does not want it to be a permanent abode for His righteous slaves.
lf this world were not a place of trial, it would have been free from disease and hardship; it would have been a comfortable abode for the best of men ---- the Messengers and Prophets. Adam faced difficulties and troubles until the day he left this world. Nooh’s (Noah) own people scoffed and ridiculed him. lbraheem (Abraham) was tested by the fire and by the command of slaughtering his son. Ya’qoob (Jacob) was separated from his son and wept until he lost his sight. Moosa (Moses) endured the tyranny of Fir’aun and afterwards the disobedience of his own people. ‘Eesa (Jesus) was poor (may peace be upon them). Muhammad (bpuh) patiently endured poverty and the impudence of his people, and he poignantly felt the loss of one of his favourite uncles --- Hamza (may Allah be pleased with him). The Prophet (bpuh) said:
"This world is a prison for the believer and a paradise for the disbeliever."
And in a literal sense, there are countless examples of the righteous, the scholars, and the truthful being imprisoned for their beliefs.