Psychics and Mediums know in a sense that space and time are an illusion, and we can therefore more readily connect our awareness to the energy of things far away, or to spirits on the other side. We are essentially less caught up in the illusion that we are all separate and that there are physical boundaries between us, because we know our spirits are without boundaries. When I am connecting to spirit, the main thing I am doing is directing my awareness to the other side and opening up to them, to connect spirit-to-spirit with them (or energy-to-energy).
The other side also seems to be completely intertwined with the physical world, and they are always surrounding us in a sense, but as if in a different dimension. They are not above us, or below us. They are all around us.
Some loved ones also take on the role of spirit guide for a loved one that's still living, usually helping with things that they knew well in life (for example, a grandfather who was a banker helping his loved one with finances). I have a great grandmother who used to read coffee grinds for people when she was alive, who also helps me with my work now from the other side.
Then we also have spirit guides who are not related to us, but they are also usually spirits of people who have lived before, that then help us for a time with something they were good at. These spirit guides might come and go, only staying for a little while. Then we have some spirit guides who stay with us throughout life, guiding us and helping us learn and grow.
Sometimes animal companions choose to reincarnate again soon after they've passed (though that's definitely not true for all animals). From my experience, it seems that deceased animal companions are in the same "place" as humans who have passed. They are not in a separate "animal heaven".
In fact, a lot of my sessions lately have been around connecting to animals who have passed. They often will point to the other animals and humans that are with them on the other side.
Do keep in mind though, that my understanding of the other side is just that: my understanding of it, seen through my personal lens of interpretation. I might well gain additional insight later that changes my thoughts on it all. In any case, I am excited to learn more from my work and from spirit, as I find it endlessly fascinating. To me it is mind-blowing how immense their love and intelligence is, and the things they are capable of doing from the other side to let us know that they are still with us, just in a different form.
I hope you all have a lovely week.