"She went up to the heavens"... if you say it that way, people will misunderstand.

She just went over to stay at Equipment-san's house, didn't she?

Equipment-san?

She's a freeloader who only stayed for the winter period. Her business is finished, so she went home just yesterday.

Cirno, whom Equipment-san was going to miss, was invited by her and tagged along.

As for the place...

The one who'll guide you there... is REIMU.

Because I have no idea where it is.