Yup, this is spot-on! Often times, when the dead want us (or their families) to know that they are ok, they appear to us, soon after death.

Visitation dreams are actually more common than people admit because (a) no one wants to admit they have them, since they fear ridicule and because (b) many people assume they are just dreams.

It is absolutely wonderful that Dean was able to communicate with you, to let you know that he is happy, healthy, and doing well.