Someone asked and this was my reply:
It’s called dream walking when you enter others dreams. You can do it but most people it takes a long time to do it and can be a little dangerous.
I show up in people’s dreams a lot as well but usually I am just there smiling and sending them a message of some sort.
I am a dream walker myself. One day to practice (choose someone you really trust) is to meditate with eachother before you fall asleep, can be touching your third eye chakra to your friends as you say aloud where you two are going to meet in the dream world together. Describe the place in as much detail as you want, then tie a piece of yarn around your left index finger and their opposite and hold hands so the knots as together as you fall asleep. Then you go meet the person in the dream world. (Omar Moreno I hope this is helpful) The purpose of the yard is so when you’re in the dream, you look at your hands to see the yarn and know what you’re doing/ that it worked/ and to remind yourself where you’re supposed to be going.
Once you’re in Alpha level, 7/8-12CPS is when you can start a dream. It is a myth that it takes hours to get there, because I can fall asleep and be dreaming within seconds. My brain is just quicker than most.
I Felt Like Talking 