You have in your soul tower in which time flows differently. You can enter here at any time, but you always exit the place you came from when you entered. You can change how time flows in comparison to the outside universe, with at maximum time seemingly stopping in the outside world, and at minimum it being the same, as the outside world. The tower has a seemingly unlimited supply of whatever supernatural powersources you have access to, such as any type or flavour of mana, Qi or other such things, even realms and other things, such as a calm Warp or sea of souls if you have the psyker power. There is also a kitchen which restocks food and drinks every 24 hours you spend inside it. This kitchen has whatever type of food you want.