The following exercise is suitable for all levels which includes both clairvoyant mediumship and meditation as part of the same exercise.
Put the students into pairs and between them decide who is going to work first and proceed in giving each other one after another, a 15-minute sitting. Please do not discuss any of the findings at this point. After each student has received a sitting from their fellow student both students are to sit for meditation for approximately 10 minutes and during the meditation the student is to send their thoughts to the spirit world, inviting whoever the communicator was in the clairvoyant sitting they received from their fellow student prior to the meditation to step forward and join them in their meditation.
As soon as the student becomes aware of their loved one from the spirit world they simply invite their loved one to continue the subject matter, evidence and discussion you were offering up during the sitting prior. After approximately 10 minutes you bring yourselves back, or if there is a tutor overseeing this exercise the tutor can invite them to bring their meditation to an end and when, and only when, you are fully conscious you can discuss your findings with your fellow student.