You will find play is a potent ally in building the bridge to the child with Autism for linking his world and ours. How far will this approach take the two of you? who can say? what we can say is that an expanded repertoire of play activity links to expanded relationships.
What you've seen are the fundamentals needed to get started working with your child, with persistence, with patience, and dedication to the techniques you've seen, you and your child can begin to explore the world together.
With the mutual understanding of objects, there are greater opportunities for shared experiences, something all of us parents cherish.
Object focus play is not just a mechanism for exploring the use of objects, it is a means for exploring the boundaries and limits to learning and living. Objects are not just devices to push and pull, they are for expanding experiences and sharing discoveries. This is how children are. For your child, there is every possibility and the prospect of relating to the world and others, much more satisfyingly by undertaking this approach. It will depend on his innate capacities and your dedication to engage in an object focus playing but so much is possible.