I don't know about actual portals, but if this helps...a (rich) friend told me when she unpackaged 2 big paintings,
she had in storage, painted by the same man decades ago of a woman in different settings....out of the big box ...
Wooosh, a spirit, or energy if you want --came out. (She is able to see these things, she is amazing.)
Objects do have spirits that hang around them, I have been told and read about often!
I bet many here will tell you their tales.
