This is not something we can define clearly because it will be very situation-specific for a particular human in the living when a loved one in the light might come to their aid. This could be in any conceivable circumstance where there is a low moment, a crisis, a time of doubt, a state of despair or anguish with the intent to impart encouraging and supportive energy, or perhaps coupled with an inspirational thought or insight. More can be accomplished during the dream state, in most cases, because most people are not open to intuitive communications in the waking state but have greater ability to be reached during sleep. A communication that takes place may or may not be remembered consciously but, nonetheless, keep in mind that the deepest part of the mind is the largest part of the mind and it is a source of great difficulty for the living because it is often struggling. Any kind of help given directly to the deep subconscious will not be perceived directly by the conscious self, but that can help lighten a mood state, raise inner hope, calm inner conflict, and so on, and be quite beneficial if not obvious to the conscious perception as to the origin of the upliftment.
You can assist this process by making requests to the divine realm for loved ones to be a part of your life, as well as Creator, with permission to help all they can in partnership with you throughout your life experience. Giving that permission is key and will make a difference. This can be used to make prayer-like requests that are specific in describing something you might be struggling with or wishing to have strengthened. That as well gives us permission and the authority and direction we need in order to influence your life directly. Keep in mind, we cannot be leading, we cannot intrude and change you unilaterally, it must have some basis in your own desires. So the more clearly you can create a wish list of needs, the more likely you will receive a benefit. So the question you have asked your channel here, in wanting closure for the trauma of his passing, is an excellent request you can make to him and to us as well, and that will continue to be worked on by all involved. Keep in mind, things can take time because they are more complicated than they seem, to have created a particular event, but this we can see and will be able to attend to when a clear request is launched from your end of things.
Please login or Register to submit your answer