The seed, as the name implies, can be said to be the root, the origin, and also carries the implication of hope and growth. It also reflects the expectations Su Yanyi and others have for this foundation.
The inclusion of children further accentuates the meaning of the seed. Orphans are among the most in need of care and love, but of course, this is just one of the reasons. The decision to invest the first sum of money into building an orphanage was Su Yanyi's idea, and by doing so, she was clearly also taking a swipe at the Qin family. Qin Jiran himself was an orphan, and his status as such was in itself a critique of the Qin family. Now that Su Yanyi had made such a move, how could the members of the Qin family feel at ease?
Even while on stage, under the watchful eyes of the audience, Qin Jiran couldn't help but take Su Yanyi's hand, touched by her protection of him. With a wife like this, what more could a husband ask for!