If you're talking about the spell at http://www.spellsofmagic.com/spells/spiritual_spells/conjuring_spells/7279/page.html then you aren't going to have such luck. You cannot create a realm and then step into it physically.
However, it is possible to create a personal space in the astral and to visit there in meditation and trance work. You just won't be able to go there physically. But you don't need to create any sort of "kin" or any other sort of servitor to help you do tis.