This scene is important as Jonas sees colour for the first time. Colour is important as humans use it to distinguish things in life and also represents things such as emotions. This is when Jonas realises abnormal things are and starts becoming suspicious, also nervous for his assignments.
Friends don't understand
Jonas is purposely skipped when the elder call out the assignments, as they left the most important role for last. This assignment requires immense courage and bravery and is the most uplifted and important role. He will be relied on in the community to be make difficult decision the community can’t make and use with wisdom I feel the memories and make the best choice.
Community hides the truth
This part of the novel is when Jonas receives his first memory,and discovers the world outside of the community. He begins to learn happiness, pain, emotions, colours and begins to start questioning the world he lives in. He becomes more keen to explore further memories and understands there are things beyond the community, and questions the community.
Jonas and Gabriel escape
Jonas remember that after all of his learning of the memories and that world where everything isn't the same, his friends and family dont know about it. He cannot share his experiences with anyone, and they are so clueless. His friends are playing an imaginary gun game with their hands and don't know anything about war and recreating pain that doesn't exist for them.
After discovering the memories and lives of the past and present world, he notices that the community hides the truth from the people and keep them in sameness. He sees the truth as The Giver shows him the process of release. His father took his new twin baby and injected a needle in it's forehead, killing it's precious life. The people in the community don't know the true process of release it was kept from them and Jonas realises there is more the community has hid from him and others.
Jonas plans and executes an escape from his community to live in elsewhere, the unmodified true world. He takes Gabriel with him as the poor baby was about to be released, and Jonas already gave him some happy memories. AS he escapes they send out planes looking for Jonas with thermal technology detecting body heat. Jonas was educated this when he was younger and was aware of it, giving Gabriel and himself cold memories, making them cold to finish their escape.