I had a little question popping in my mind last night :

If we are going to visit another Shard of reallity by using the Cristal Tower as a door....does that mean we won't be able to come back in our Shard (meaning the actual Eorzea we are living in) unless we realise certain action in the First ? ^^"
What about our houses, retainers, and actual dungeons/raids/Primals ? ^^"

Stupid question I know but I was like "wtf ?" xD