At a cognitive level, when people are hypomanic their belief in their own ability to succeed and do what they propose is quite high. The negative internal dialogue and the pessimism of depression can not be found internally anywhere. There is great confidence that helps people carry out their tasks with unwavering faith in their own abilities. "I can write that book in four weeks, there's no problem!" Attending a party for 300, of course, why not? "Running for the presidency? Okay" Many people have gone far in the fields of politics, arts, business, law, medicine, etc. probably having bipolar affective disorder.
In a slightly hypomanic state there may be a taste for the creative process of writing, drawing, composition, decoration, etc. This may be partly due to a growing sense of one's own abilities. The critical spirit, which can create a total spoilsport to creativity, is complete, which allows the imagination to flourish.
You're right, but it's not that rosy on the other side of the coin, so... I prefer trying to keep myself at least more or less calm and straight.