Is Sasuke the tear/star, representing the determination/ever reaching will Sasuke gives to Naruto as well as the emotional stress/sadness placed on Sakura. Sasuke is both images. The images are melded together, meaning to different things to the two other members of Team 7
Nicely said. ^^
I don't know if Kishimoto thought exactly of that when he has drawn this chapter but that's a nice and kind of poetic vision of this scene.