You can create and visualize alternate dimensions and universes that allow you to send designated targets within your vision to them. This is accurate enough to send handheld tools or even worn armor to different pocket dimensions while being held. You can even send yourself or other people there. While there are a vast amount of options, you can create hostile miniature dimensions that can have a variety of different effects that don't match normal physics. Such as Dimensions where Machines cannot work or Dimensions where it perfectly matches a universe.
You cannot create sentient life with this ability. And the effects of the created dimensions apply to you as well as anything or anyone there.