First things first: Are
there any mistakes
The sentences contain several awkward usages which a native speaker would likely not employ. There is one egregious mistake which I will underline.
Sometimes all of us get lost in our own deep thoughts. There was a man who
was a watchman at a washroom somewhere in Kashmir. He was completely absorbed
in his own thoughts; thoughts which
included all sorts
of feelings such as sadness, happiness, worries, grief and many more. I hope whatever
he is lost in will not kill his happiness. Nevertheless, we are all in the same boat; I pray to God for your happiness.
"Ya" is not a word in English.