What kind of activity could you do all day forgetting about time and space Why

I can spend more time on activity which makes me satisfied and thriving.
In the present, I need to develop myself, learn many new things and have to be a skillful community.
I can forget the time and space all-day when I cooperate with industrious and lively students with goals and aspirations like me.
It's great to have to be a community that develops me and respects my personality. I am sure that the Tomujin community can give me many things. Also, I will devote as much as I can. It is an excellent activity to develop myself and them by devoting time to the Tomujin community.
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