Abundant Life, pg. 132; “Temple building to us is different from building chapels, or tabernacles, or meeting places. We build temples for the express purpose of having a holy place into which the worthy may go to perform ordinances calculated to bind together the living and the dead.” – Hugh Brown
Hebrews 10:1; “For the law having a shadow of good things to come, and not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.”
And while you go into your temples, God tells us that this isn’t necessary in addition to it being a sin to practice necromancy.