The five aggregates are all activities of the mind. It is obvious that the feelings, perceptions, and mental formations (thought constructs) are activities of the mind. Please see the mind works model. However it is not obvious that the form (body) is an activity of the mind. We feel our body through our somatosensory perceptions from the neuronal pathways. This therefore is an activity of the mind. This is the ongoing perception of the body. Furthermore our present body too is an activity of mind (kamma vipaka) in the previous birth. Our future body will be the result of the activity of the mind now (kamma formation/intention of thought constructs).
(Please click on the label five aggregates below to read the other posts on the five aggregates)